TODAY IN SCIENCE HISTORY™
Celebrating 17 Years on the Web
Find science on or your birthday

Today in Science History - Quickie Quiz
Who said: “Genius is two percent inspiration, ninety-eight percent perspiration.”
more quiz questions >>
Home > Category Index for Science Quotations > Category Index O > Category: Operation

Operation Quotes (66 quotes)

Energie is the operation, efflux or activity of any being: as the light of the Sunne is the energie of the Sunne, and every phantasm of the soul is the energie of the soul.
[The first recorded definition of the term energy in English]
In Platonica: A Platonicall Song of the Soul (1642). In this book of poems, More uses the word energie many times, and in the opening section, 'To the Reader'. The definition quoted appears at the end of the book in 'The interpretation of the more unusual names or words that occurre in the foregoing Poems.'
Science quotes on:  |  Activity (56)  |  Being (37)  |  Definition (107)  |  Energy (126)  |  Light (156)  |  Solar Energy (16)  |  Soul (68)  |  Sun (131)

La théorie des séries infinies en général est justqu’à présent très mal fondée. On applique aux séries infinies toutes les opérations, come si elles aient finies; mais cela est-il bien permis? Je crois que non. Où est-il démonstré qu/on ontient la différentielle dune série infinie en prenant la différentiaella de chaque terme. Rien n’est plus facile que de donner des exemples où cela n’est pas juste.
Until now the theory of infinite series in general has been very badly grounded. One applies all the operations to infinite series as if they were finite; but is that permissible? I think not. Where is it demonstrated that one obtains the differential of an infinite series by taking the differential of each term? Nothing is easier than to give instances where this is not so.
Quoted in Reinhold Remmert and Robert B. Burckel, Theory of Complex Functions: Readings in Mathematics (1991), 125.
Science quotes on:  |  Differential (2)  |  Finite (13)  |  Infinite (57)  |  Series (26)  |  Term (55)  |  Theory (437)

Les mathématiciens parviennent à la solution d’un problême par le simple arrangement des données, & en réduisant le raisonnement à des opérations si simples, à des jugemens si courts, qu’ils ne perdent jamais de vue l’évidence qui leur sert de guide.
Mathematicians come to the solution of a problem by the simple arrangement of the data, and reducing the reasoning to such simple operations, to judgments so brief, that they never lose sight of the evidence that serves as their guide.
From a paper read to the Académie Royales des Sciences (18 Apr 1787), printed in Méthode de Nomenclature Chimique (1787), 12. Translation from the French by Webmaster.
Science quotes on:  |  Arrangement (35)  |  Brief (9)  |  Data (71)  |  Evidence (103)  |  Guide (22)  |  Judgment (46)  |  Mathematician (134)  |  Problem (234)  |  Reasoning (68)  |  Reduction (30)  |  Simple (44)  |  Solution (131)

Question: Explain how to determine the time of vibration of a given tuning-fork, and state what apparatus you would require for the purpose.
Answer: For this determination I should require an accurate watch beating seconds, and a sensitive ear. I mount the fork on a suitable stand, and then, as the second hand of my watch passes the figure 60 on the dial, I draw the bow neatly across one of its prongs. I wait. I listen intently. The throbbing air particles are receiving the pulsations; the beating prongs are giving up their original force; and slowly yet surely the sound dies away. Still I can hear it, but faintly and with close attention; and now only by pressing the bones of my head against its prongs. Finally the last trace disappears. I look at the time and leave the room, having determined the time of vibration of the common “pitch” fork. This process deteriorates the fork considerably, hence a different operation must be performed on a fork which is only lent.
Genuine student answer* to an Acoustics, Light and Heat paper (1880), Science and Art Department, South Kensington, London, collected by Prof. Oliver Lodge. Quoted in Henry B. Wheatley, Literary Blunders (1893), 176-7, Question 4. (*From a collection in which Answers are not given verbatim et literatim, and some instances may combine several students' blunders.)
Science quotes on:  |  Accuracy (47)  |  Answer (119)  |  Apparatus (22)  |  Attention (52)  |  Beat (9)  |  Bone (39)  |  Bow (5)  |  Close (12)  |  Deterioration (4)  |  Determination (46)  |  Dial (3)  |  Difference (161)  |  Disappearance (20)  |  Drawing (17)  |  Ear (14)  |  Examination (55)  |  Explanation (127)  |  Faint (3)  |  Force (105)  |  Head (29)  |  Hearing (26)  |  Howler (15)  |  Leaving (10)  |  Looking (23)  |  Original (22)  |  Performance (20)  |  Question (196)  |  Room (13)  |  Second (13)  |  Sensitivity (5)  |  Slow (13)  |  Sound (32)  |  Stand (29)  |  State (47)  |  Sure (12)  |  Time (234)  |  Vibration (10)  |  Watch (18)

Tardiora sunt remedia quam mala.
Remedies are slower in their operation than diseases.
In James Wood, Dictionary of Quotations from Ancient and Modern, English and Foreign (1893), 410.
Science quotes on:  |  Disease (192)  |  Remedy (27)  |  Slowness (4)

A great surgeon performs operations for stone by a single method; later he makes a statistical summary of deaths and recoveries, and he concludes from these statistics that the mortality law for this operation is two out of five. Well, I say that this ratio means literally nothing scientifically and gives us no certainty in performing the next operation; for we do not know whether the next case will be among the recoveries or the deaths. What really should be done, instead of gathering facts empirically, is to study them more accurately, each in its special determinism. We must study cases of death with great care and try to discover in them the cause of mortal accidents so as to master the cause and avoid the accidents.
From An Introduction to the Study of Experimental Medicine (1865), as translated by Henry Copley Greene (1957), 137-138. (Note that Bernard overlooks how the statistical method can be useful: a surgeon announcing a mortality rate of 40% invites comparison. A surgeon with worse outcomes should adopt this method. If a surgeon has a better results, that method should be adopted.)
Science quotes on:  |  Accident (37)  |  Accuracy (47)  |  Avoidance (8)  |  Cause (166)  |  Certainty (81)  |  Conclusion (88)  |  Death (216)  |  Determinism (5)  |  Discover (22)  |  Empirical (5)  |  Fact (409)  |  Gather (18)  |  Great (103)  |  Knowledge (853)  |  Law (327)  |  Master (28)  |  Meaning (72)  |  Method (105)  |  Mortality (6)  |  Nothing (124)  |  Performing (2)  |  Ratio (12)  |  Recovery (14)  |  Scientifically (2)  |  Single (35)  |  Statistics (103)  |  Stone (36)  |  Study (227)  |  Summary (5)  |  Surgeon (33)

A minor operation: one performed on somebody else.
Penguin Dictionary of Modern Humorous Quotations (2001), 191.

All living organisms are but leaves on the same tree of life. The various functions of plants and animals and their specialized organs are manifestations of the same living matter. This adapts itself to different jobs and circumstances, but operates on the same basic principles. Muscle contraction is only one of these adaptations. In principle it would not matter whether we studied nerve, kidney or muscle to understand the basic principles of life. In practice, however, it matters a great deal.
'Muscle Research', Scientific American, 1949, 180 (6), 22.
Science quotes on:  |  Adaptation (30)  |  Animal (188)  |  Basic (27)  |  Circumstance (35)  |  Contraction (6)  |  Function (60)  |  Job (20)  |  Kidney (9)  |  Life (588)  |  Manifestation (24)  |  Matter (169)  |  Muscle (28)  |  Nerve (58)  |  Organ (49)  |  Organism (88)  |  Plant (119)  |  Principle (141)  |  Specialization (12)  |  Tree (103)  |  Understanding (291)

All the modern higher mathematics is based on a calculus of operations, on laws of thought. All mathematics, from the first, was so in reality; but the evolvers of the modern higher calculus have known that it is so. Therefore elementary teachers who, at the present day, persist in thinking about algebra and arithmetic as dealing with laws of number, and about geometry as dealing with laws of surface and solid content, are doing the best that in them lies to put their pupils on the wrong track for reaching in the future any true understanding of the higher algebras. Algebras deal not with laws of number, but with such laws of the human thinking machinery as have been discovered in the course of investigations on numbers. Plane geometry deals with such laws of thought as were discovered by men intent on finding out how to measure surface; and solid geometry with such additional laws of thought as were discovered when men began to extend geometry into three dimensions.
Lectures on the Logic of Arithmetic (1903), Preface, 18-19.
Science quotes on:  |  Algebra (28)  |  Arithmetic (49)  |  Calculus (18)  |  Dimension (14)  |  Discovery (470)  |  Geometry (87)  |  Investigation (120)  |  Measurement (132)  |  Number (114)  |  Solid (24)  |  Surface (47)  |  Teacher (66)  |  Thinking (206)  |  Track (4)  |  Understanding (291)  |  Wrong (63)

All things on the earth are the result of chemical combination. The operation by which the commingling of molecules and the interchange of atoms take place we can imitate in our laboratories; but in nature they proceed by slow degrees, and, in general, in our hands they are distinguished by suddenness of action. In nature chemical power is distributed over a long period of time, and the process of change is scarcely to be observed. By acts we concentrate chemical force, and expend it in producing a change which occupies but a few hours at most.
In chapter 'Chemical Forces', The Poetry of Science: Or, Studies of the Physical Phenomena of Nature (1848), 235-236. Charles Dicken used this quote, with his own sub-head of 'Relative Importance Of Time To Man And Nature', to conclude his review of the book, published in The Examiner (1848).
Science quotes on:  |  Act (39)  |  Action (84)  |  Atom (188)  |  Change (181)  |  Chemistry (185)  |  Combination (51)  |  Concentration (10)  |  Distinguishing (14)  |  Earth (303)  |  Force (105)  |  Hour (20)  |  Imitate (2)  |  Interchange (3)  |  Laboratory (96)  |  Long (26)  |  Molecule (98)  |  Nature (670)  |  Observed (5)  |  Period (40)  |  Place (45)  |  Power (144)  |  Proceeding (13)  |  Process (132)  |  Producing (6)  |  Result (164)  |  Slow (13)  |  Suddenness (4)  |  Time (234)

An amino acid residue (other than glycine) has no symmetry elements. The general operation of conversion of one residue of a single chain into a second residue equivalent to the first is accordingly a rotation about an axis accompanied by translation along the axis. Hence the only configurations for a chain compatible with our postulate of equivalence of the residues are helical configurations.
[Co-author with American chemist, ert B. Corey (1897-1971) and H. R. Branson]
'The Structure of Proteins: Two Hydrogen-bonded Helical Configurations of the Polypeptide Chain', Proceedings of the National Academy of Sciences of the United States of America (1951), 37, 206.
Science quotes on:  |  Amino Acid (9)  |  Axis (7)  |  Chain (31)  |  Compatibility (3)  |  Configuration (4)  |  Conversion (12)  |  Equivalence (2)  |  Helix (8)  |  Postulate (19)  |  Residue (5)  |  Rotation (5)  |  Symmetry (18)  |  Translation (11)

Astronomy affords the most extensive example of the connection of physical sciences. In it are combined the sciences of number and quantity, or rest and motion. In it we perceive the operation of a force which is mixed up with everything that exists in the heavens or on earth; which pervades every atom, rules the motion of animate and inanimate beings, and is a sensible in the descent of the rain-drop as in the falls of Niagara; in the weight of the air, as in the periods of the moon.
On the Connexion of the Physical Sciences (1858), 1.
Science quotes on:  |  Air (106)  |  Animate (3)  |  Astronomy (130)  |  Atom (188)  |  Being (37)  |  Combination (51)  |  Connection (56)  |  Descent (11)  |  Earth (303)  |  Everything (53)  |  Example (32)  |  Existence (177)  |  Force (105)  |  Heaven (79)  |  Inanimate (10)  |  Mix (6)  |  Moon (92)  |  Motion (91)  |  Niagara (2)  |  Number (114)  |  Perception (31)  |  Period (40)  |  Physical Science (41)  |  Quantity (28)  |  Rest (36)  |  Rule (74)  |  Sensible (13)  |  Weight (45)

But nature is remarkably obstinate against purely logical operations; she likes not schoolmasters nor scholastic procedures. As though she took a particular satisfaction in mocking at our intelligence, she very often shows us the phantom of an apparently general law, represented by scattered fragments, which are entirely inconsistent. Logic asks for the union of these fragments; the resolute dogmatist, therefore, does not hesitate to go straight on to supply, by logical conclusions, the fragments he wants, and to flatter himself that he has mastered nature by his victorious intelligence.
'On the Principles of Animal Morphology', Proceedings of the Royal Society of Edinburgh (2 Apr 1888), 15, 289. Original as Letter to Mr John Murray, communicated to the Society by Professor Sir William Turner. Page given as in collected volume published 1889.
Science quotes on:  |  Apparently (6)  |  Conclusion (88)  |  Dogmatist (2)  |  Fragment (18)  |  General (48)  |  Hesitate (2)  |  Inconsistent (4)  |  Intelligence (98)  |  Law (327)  |  Like (16)  |  Logic (149)  |  Master (28)  |  Mocking (3)  |  Nature (670)  |  Obstinate (2)  |  Phantom (4)  |  Procedure (13)  |  Remarkably (2)  |  Satisfaction (39)  |  Scattered (2)  |  Schoolmaster (4)  |  Union (10)

But nothing of a nature foreign to the duties of my profession [clergyman] engaged my attention while I was at Leeds so much as the, prosecution of my experiments relating to electricity, and especially the doctrine of air. The last I was led into a consequence of inhabiting a house adjoining to a public brewery, where first amused myself with making experiments on fixed air [carbon dioxide] which found ready made in the process of fermentation. When I removed from that house, I was under the necessity making the fixed air for myself; and one experiment leading to another, as I have distinctly and faithfully noted in my various publications on the subject, I by degrees contrived a convenient apparatus for the purpose, but of the cheapest kind. When I began these experiments I knew very little of chemistry, and had in a manner no idea on the subject before I attended a course of chymical lectures delivered in the Academy at Warrington by Dr. Turner of Liverpool. But I have often thought that upon the whole, this circumstance was no disadvantage to me; as in this situation I was led to devise an apparatus and processes of my own, adapted to my peculiar views. Whereas, if I had been previously accustomed to the usual chemical processes, I should not have so easily thought of any other; and without new modes of operation I should hardly have discovered anything materially new.
Memoirs of Dr. Joseph Priestley, in the Year 1795 (1806), Vol. 1, 61-2.
Science quotes on:  |  Air (106)  |  Apparatus (22)  |  Carbon Dioxide (15)  |  Chemistry (185)  |  Discovery (470)  |  Duty (34)  |  Electricity (90)  |  Experiment (457)  |  Fermentation (12)  |  Fixed Air (2)  |  Lecture (41)  |  Mode (12)  |  Profession (38)  |  Publication (80)  |  Thought (228)  |  View (59)

Combining in our survey then, the whole range of deposits from the most recent to the most ancient group, how striking a succession do they present:– so various yet so uniform–so vast yet so connected. In thus tracing back to the most remote periods in the physical history of our continents, one system of operations, as the means by which many complex formations have been successively produced, the mind becomes impressed with the singleness of nature's laws; and in this respect, at least, geology is hardly inferior in simplicity to astronomy.
The Silurian System (1839), 574.
Science quotes on:  |  Ancient (37)  |  Combination (51)  |  Complexity (60)  |  Connection (56)  |  Continent (28)  |  Deposit (6)  |  Formation (47)  |  History (199)  |  Impression (35)  |  Law (327)  |  Law Of Nature (40)  |  Mind (334)  |  Nature (670)  |  Production (80)  |  Range (18)  |  Recent (15)  |  Singleness (2)  |  Succession (34)  |  Survey (9)  |  System (85)  |  Trace (13)  |  Uniformity (15)  |  Variety (36)  |  Vast (30)

Even a good operation done poorly is still a poor operation.

Exploratory operation: a remunerative reconnaissance.
Science quotes on:  |  Quip (71)

Having made a sufficient opening to admit my finger into the abdomen, I passed it between the intestines to the spine, and felt the aorta greatly enlarged, and beating with excessive force. By means of my finger nail, I scratched through the peritoneum on the left side of the aorta, and then gradually passed my finger between the aorta and the spine, and again penetrated the peritoneum, on the right side of the aorta. I had now my finger under the artery, and by its side I conveyed the blunt aneurismal needle, armed with a single ligature behind it...
Describing the first ligation of the aorta in 1817 for left femoral aneurysm.
Frederick Tyrell (Ed.), 'Lecture 15, On the Operation for Aneurism', The Lectures of Sir Astley Cooper (1824), Vol. 2, 58.

How fortunate for civilization, that Beethoven, Michelangelo, Galileo and Faraday were not required by law to attend schools where their total personalities would have been operated upon to make them learn acceptable ways of participating as members of “the group.”
In speech, 'Education for Creativity in the Sciences', Conference at New York University, Washington Square. As quoted by Gene Currivan in 'I.Q. Tests Called Harmful to Pupil', New York Times (16 Jun 1963), 66.
Science quotes on:  |  Acceptable (2)  |  Attend (4)  |  Beethoven_Ludwig (4)  |  Civilization (114)  |  Michael Faraday (66)  |  Fortunate (3)  |  Galileo Galilei (68)  |  Group (32)  |  Law (327)  |  Learning (160)  |  Member (14)  |  Participation (7)  |  Personality (23)  |  Requirement (40)  |  School (50)  |  Total (15)  |  Way (35)

I find that most men would rather have their bellies opened for five hundred dollars than have a tooth pulled for five.
Martin H. Fischer, Howard Fabing (ed.) and Ray Marr (ed.), Fischerisms (1944).
Science quotes on:  |  Belly (2)  |  Dentist (3)  |  Surgery (32)  |  Tooth (12)

If it were possible for a metaphysician to be a golfer, he might perhaps occasionally notice that his ball, instead of moving forward in a vertical plane (like the generality of projectiles, such as brickbats and cricket balls), skewed away gradually to the right. If he did notice it, his methods would naturally lead him to content himself with his caddies's remark-'ye heeled that yin,' or 'Ye jist sliced it.' ... But a scientific man is not to be put off with such flimsy verbiage as that. He must know more. What is 'Heeling', what is 'slicing', and why would either operation (if it could be thoroughly carried out) send a ball as if to cover point, thence to long slip, and finally behind back-stop? These, as Falstaff said, are 'questions to be asked.'
'The Unwritten Chapter on Golf, Nature (1887), 36, 502.
Science quotes on:  |  Ball (6)  |  Contentment (9)  |  Cricket (5)  |  Flimsy (2)  |  Forward (10)  |  Generalization (21)  |  Gradual (11)  |  Metaphysician (4)  |  Method (105)  |  Movement (40)  |  Notice (14)  |  Occasion (10)  |  Plane (9)  |  Possibility (81)  |  Right (68)  |  Verbiage (2)  |  Vertical (2)

It has hitherto been a serious impediment to the progress of knowledge, that is in investigating the origin or causes of natural productions, recourse has generally been had to the examination, both by experiment and reasoning, of what might be rather than what is. The laws or processes of nature we have every reason to believe invariable. Their results from time to time vary, according to the combinations of influential circumstances; but the process remains the same. Like the poet or the painter, the chemist may, and no doubt often' does, create combinations which nature never produced; and the possibility of such and such processes giving rise to such and such results, is no proof whatever that they were ever in natural operation.
Considerations on Volcanoes (1825), 243.
Science quotes on:  |  Belief (204)  |  Cause (166)  |  Chemist (66)  |  Circumstance (35)  |  Combination (51)  |  Examination (55)  |  Experiment (457)  |  Impediment (4)  |  Influence (62)  |  Invariability (3)  |  Investigation (120)  |  Knowledge (853)  |  Law (327)  |  Natural (71)  |  Nature (670)  |  Origin (50)  |  Painter (10)  |  Poet (44)  |  Process (132)  |  Production (80)  |  Progress (249)  |  Proof (160)  |  Reason (211)  |  Reasoning (68)  |  Recourse (5)  |  Result (164)  |  Variation (41)

It is my thesis that the physical functioning of the living individual and the operation of some of the newer communication machines are precisely parallel in their analogous attempts to control entropy through feedback. Both of them have sensory receptors as one stage in their cycle of operation: that is, in both of them there exists a special apparatus for collecting information from the outer world at low energy levels, and for making it available in the operation of the individual or of the machine. In both cases these external messages are not taken neat, but through the internal transforming powers of the apparatus, whether it be alive or dead. The information is then turned into a new form available for the further stages of performance. In both the animal and the machine this performance is made to be effective on the outer world. In both of them, their performed action on the outer world, and not merely their intended aetion, is reported back to the central regulatory apparatus.
In The Human Use of Human Beings: Cybernetics and Society (1954), 26-27.
Science quotes on:  |  Analogy (36)  |  Communication (46)  |  Entropy (28)  |  Feedback (6)  |  Function (60)  |  Life (588)  |  Machine (79)  |  Performance (20)  |  Sense (134)  |  Thesis (8)

It is not therefore the business of philosophy, in our present situation in the universe, to attempt to take in at once, in one view, the whole scheme of nature; but to extend, with great care and circumspection, our knowledge, by just steps, from sensible things, as far as our observations or reasonings from them will carry us, in our enquiries concerning either the greater motions and operations of nature, or her more subtile and hidden works. In this way Sir Isaac Newton proceeded in his discoveries.
An Account of Sir Isaac Newton's Philosophical Discoveries, in Four Books (1748), 19.
Science quotes on:  |  Attempt (53)  |  Business (35)  |  Care (48)  |  Circumspection (2)  |  Concern (39)  |  Discovery (470)  |  Enquiry (72)  |  Extend (7)  |  Hidden (23)  |  Knowledge (853)  |  Motion (91)  |  Nature (670)  |  Sir Isaac Newton (213)  |  Observation (332)  |  Philosophy (163)  |  Reasoning (68)  |  Scheme (11)  |  Sensible (13)  |  Situation (23)  |  Step (39)  |  Subtle (10)  |  Universe (339)  |  View (59)

It is sometimes asserted that a surgical operation is or should be a work of art … fit to rank with those of the painter or sculptor. … That proposition does not admit of discussion. It is a product of the intellectual innocence which I think we surgeons may fairly claim to possess, and which is happily not inconsistent with a quite adequate worldly wisdom.
Address, opening of 1932-3 session of U.C.H. Medical School (4 Oct 1932), 'Art and Science in Medicine', The Collected Papers of Wilfred Trotter, FRS (1941), 93.
Science quotes on:  |  Adequacy (4)  |  Admission (7)  |  Art (107)  |  Assertion (18)  |  Claim (33)  |  Discussion (24)  |  Happiness (63)  |  Inconsistency (4)  |  Innocence (7)  |  Intellect (125)  |  Painter (10)  |  Possession (28)  |  Product (43)  |  Proposition (35)  |  Rank (15)  |  Sculptor (4)  |  Surgeon (33)  |  Surgery (32)  |  Wisdom (107)

It takes five years to learn when to operate and twenty years to learn when not to.
Science quotes on:  |  Surgery (32)

Many inventions are not suitable for the people at large because of their carelessness. Before a thing can be marketed to the masses, it must be made practically fool-proof. Its operation must be made extremely simple. That is one reason, I think, why the phonograph has been so universally adopted. Even a child can operate it. … Another reason is that people are far more willing to pay for being amused than for anything else.
As quoted from an interview by B.C. Forbes in The American Magazine (Jan 1921), 86.
Science quotes on:  |  Amusement (16)  |  Carelessness (4)  |  Foolproof (2)  |  Invention (213)  |  Marketing (3)  |  Pay (14)  |  Phonograph (7)  |  Simplicity (113)  |  Success (139)

Medicine has made all its progress during the past fifty years. ... How many operations that are now in use were known fifty years ago?—they were not operations, they were executions.
Speech at the Twentieth Anniversary Dinner of the Society of Medical Jurisprudence, New York (8 Mar 1902). In Mark Twain and Paul Fatout (ed.,) Mark Twain Speaking (2006), 429-430.
Science quotes on:  |  Execution (8)  |  Medicine (215)  |  Progress (249)

Men are noisy, narrow-band devices, but their nervous systems have very many parallel and simultaneously active channels. Relative to men, computing machines are very fast and very accurate, but they are constrained to perform only one or a few elementary operations at a time. Men are flexible, capable of “programming themselves contingently” on the basis of newly received information. Computing machines are single-minded, constrained by their “pre-programming.”
From article 'Man-Computer Symbiosis', in IRE Transactions on Human Factors in Electronics (Mar 1960), Vol. HFE-1, 4-11.
Science quotes on:  |  Accurate (10)  |  Active (6)  |  Capable (10)  |  Channel (8)  |  Computer (61)  |  Contingent (4)  |  Device (16)  |  Elementary (18)  |  Fast (13)  |  Flexible (3)  |  Information (68)  |  Man (288)  |  Nervous System (9)  |  Noise (17)  |  Parallel (12)  |  Perform (10)  |  Program (9)  |  Relative (15)  |  Simultaneous (5)

My lectures were highly esteemed, but I am of opinion my operations rather kept down my practice, than increased it.
Quoted in Bransby Blake Cooper, The Life of Sir Astley Cooper (1843), Vol. 2, 471.
Science quotes on:  |  Biography (207)  |  Lecture (41)

My “"thinking”" time was devoted mainly to activities that were essentially clerical or mechanical: searching, calculating, plotting, transforming, determining the logical or dynamic consequences of a set of assumptions or hypotheses, preparing the way for a decision or an insight. Moreover ... the operations that fill most of the time allegedly devoted to technical thinking are operations that can be performed more effectively by machines than by men.
From article 'Man-Computer Symbiosis', in IRE Transactions on Human Factors in Electronics (Mar 1960), Vol. HFE-1, 4-11.
Science quotes on:  |  Activity (56)  |  Assumption (33)  |  Consequence (53)  |  Decision (40)  |  Determining (2)  |  Dynamic (8)  |  Hypothesis (185)  |  Insight (38)  |  Logical (5)  |  Machine (79)  |  Mechanical (17)  |  Perform (10)  |  Plotting (2)  |  Preparing (2)  |  Searching (3)  |  Technical (9)  |  Thinking (206)  |  Transforming (4)

Nature has but one plan of operation, invariably the same in the smallest things as well as in the largest, and so often do we see the smallest masses selected for use in Nature, that even enormous ones are built up solely by fitting these together. Indeed, all Nature’s efforts are devoted to uniting the smallest parts of our bodies in such a way that all things whatsoever, however diverse they may be, which coalesce in the structure of living things construct the parts by means of a sort of compendium.
'On the Developmental Process', in H. B. Adelmann (ed.), Marcello Malpighi and the Evolution of Embryology (1966), Vol. 2, 843.
Science quotes on:  |  Body (127)  |  Building (48)  |  Compendium (2)  |  Construction (52)  |  Devotion (16)  |  Diversity (33)  |  Effort (57)  |  Enormous (18)  |  Invariability (3)  |  Large (32)  |  Living Thing (2)  |  Nature (670)  |  Part (69)  |  Plan (50)  |  Sameness (2)  |  Selection (23)  |  Small (47)  |  Structure (133)  |  Uniting (4)  |  Use (62)

Nature, … in order to carry out the marvelous operations [that occur] in animals and plants has been pleased to construct their organized bodies with a very large number of machines, which are of necessity made up of extremely minute parts so shaped and situated as to form a marvelous organ, the structure and composition of which are usually invisible to the naked eye without the aid of a microscope. … Just as Nature deserves praise and admiration for making machines so small, so too the physician who observes them to the best of his ability is worthy of praise, not blame, for he must also correct and repair these machines as well as he can every time they get out of order.
'Reply to Doctor Sbaraglia' in Opera Posthuma (1697), in H. B. Adelmann (ed.), Marcello Malpighi and the Evolution of Embryology (1966), Vol. 1, 568.
Science quotes on:  |  Ability (51)  |  Admiration (27)  |  Aid (14)  |  Animal (188)  |  Blame (7)  |  Body (127)  |  Composition (36)  |  Construction (52)  |  Correction (25)  |  Extreme (20)  |  Formation (47)  |  Invisibility (5)  |  Machine (79)  |  Making (25)  |  Marvel (19)  |  Microscope (53)  |  Minuteness (3)  |  Naked Eye (5)  |  Nature (670)  |  Necessity (102)  |  Observation (332)  |  Organ (49)  |  Organization (63)  |  Out Of Order (2)  |  Part (69)  |  Physician (193)  |  Plant (119)  |  Pleasure (73)  |  Praise (10)  |  Repair (6)  |  Shape (27)  |  Small (47)  |  Structure (133)

Nothing is lost and nothing is created in the operations of art as those of nature.
Pasteur Vallery-Radot (ed.), Correspondance de Pasteur 1840-1895 (1940), Vol. 1, 326. Quoted in Patrice Debré, Louis Pasteur, trans. Elborg Forster (1994), 90.
Science quotes on:  |  Art (107)  |  Creation (164)  |  Loss (55)  |  Nature (670)  |  Nothing (124)

One is constantly reminded of the infinite lavishness and fertility of Nature—inexhaustible abundance amid what seems enormous waste. And yet when we look into any of her operations that lie within reach of our minds, we learn that no particle of her material is wasted or worn out. It is eternally flowing from use to use, beauty to yet higher beauty; and we soon cease to lament waste and death, and rather rejoice and exult in the imperishable, unspendable wealth of the universe.
In My First Summer in the Sierra (1911), 325. Based on Muir's original journals and sketches of his 1869 stay in the Sierra.
Science quotes on:  |  Abundance (11)  |  Beauty (125)  |  Carbon Cycle (3)  |  Constancy (4)  |  Cycle (19)  |  Death (216)  |  Enormous (18)  |  Eternity (27)  |  Exultation (4)  |  Fertility (10)  |  Flow (17)  |  Infinite (57)  |  Learning (160)  |  Material (81)  |  Mind (334)  |  Nature (670)  |  Particle (59)  |  Rejoice (5)  |  Reminder (11)  |  Universe (339)  |  Use (62)  |  Waste (41)  |  Wealth (35)  |  Worn (3)

One of my surgical giant friends had in his operating room a sign “If the operation is difficult, you aren’t doing it right.” What he meant was, you have to plan every operation You cannot ever be casual You have to realize that any operation is a potential fatality.
From Cornelia Dean, 'A Conversation with Joseph E. Murray', New York Times (25 Sep 2001), F5.
Science quotes on:  |  Casual (3)  |  Difficult (19)  |  Error (174)  |  Fatality (2)  |  Plan (50)  |  Potential (21)  |  Realize (11)  |  Sign (21)  |  Surgeon (33)

Physical misery is great everywhere out here [Africa]. Are we justified in shutting our eyes and ignoring it because our European newspapers tell us nothing about it? We civilised people have been spoilt. If any one of us is ill the doctor comes at once. Is an operation necessary, the door of some hospital or other opens to us immediately. But let every one reflect on the meaning of the fact that out here millions and millions live without help or hope of it. Every day thousands and thousands endure the most terrible sufferings, though medical science could avert them. Every day there prevails in many and many a far-off hut a despair which we could banish. Will each of my readers think what the last ten years of his family history would have been if they had been passed without medical or surgical help of any sort? It is time that we should wake from slumber and face our responsibilities!
In On the Edge of the Primeval Forest, trans. C. T. Campion (1948, 1998), 126-127.
Science quotes on:  |  Africa (10)  |  Awakening (4)  |  Civilization (114)  |  Despair (15)  |  Doctor (62)  |  Europe (22)  |  Hospital (24)  |  Ignoring (5)  |  Illness (13)  |  Justification (25)  |  Medical Science (3)  |  Medicine (215)  |  Million (40)  |  Misery (13)  |  Newspaper (21)  |  Responsibility (28)  |  Slumber (3)  |  Suffering (23)  |  Surgery (32)

Red is the color in which the interior of the body is painted. If an operation be thought of as a painting in progress, and blood red the color on the brush, it must be suitably restrained and attract no undue attention; yet any insufficiency of it will increase the perishability of the canvas.
In 'Letter to a Young Surgeon II', Letters to a Young Doctor (1996), 47.
Science quotes on:  |  Attention (52)  |  Attraction (27)  |  Blood (71)  |  Brush (3)  |  Canvas (2)  |  Color (53)  |  Increase (52)  |  Painting (19)  |  Progress (249)  |  Red (14)  |  Suitability (11)  |  Thought (228)  |  Undue (3)

Science has thus, most unexpectedly, placed in our hands a new power of great but unknown energy. It does not wake the winds from their caverns; nor give wings to water by the urgency of heat; nor drive to exhaustion the muscular power of animals; nor operate by complicated mechanism; nor summon any other form of gravitating force, but, by the simplest means—the mere contact of metallic surfaces of small extent, with feeble chemical agents, a power everywhere diffused through nature, but generally concealed from our senses, is mysteriously evolved, and by circulation in insulated wires, it is still more mysteriously augmented, a thousand and a thousand fold, until it breaks forth with incredible energy.
Comment upon 'The Notice of the Electro-Magnetic Machine of Mr. Thomas Davenport, of Brandon, near Rutland, Vermont, U.S.', The Annals of Electricity, Magnetism, & Chemistry; and Guardian of Experimental Science (1838), 2, 263.
Science quotes on:  |  Animal (188)  |  Augmentation (4)  |  Cavern (3)  |  Circulation (15)  |  Complicated (19)  |  Concealment (7)  |  Contact (14)  |  Electromagnetism (17)  |  Energy (126)  |  Exhaustion (12)  |  Gravity (65)  |  Heat (57)  |  Means (38)  |  Mechanism (32)  |  Mere (11)  |  Metal (25)  |  Muscle (28)  |  Mystery (86)  |  Power (144)  |  Science (1103)  |  Sense (134)  |  Simplicity (113)  |  Summon (3)  |  Unknown (59)  |  Water (165)  |  Wind (36)  |  Wing (21)  |  Wire (12)

Science is a method of logical analysis of nature’s operations. It has lessened human anxiety about the cosmos by demonstrating the materiality of nature’s forces, and their frequent predictability.
In Sexual Personae: Art and Decadence from Nefertiti to Emily Dickinson (1990), 5.
Science quotes on:  |  Analysis (101)  |  Anxiety (9)  |  Cosmos (27)  |  Force (105)  |  Frequent (8)  |  Human (220)  |  Lessen (3)  |  Logic (149)  |  Materiality (2)  |  Method (105)  |  Nature (670)  |  Predictability (5)  |  Science (1103)

Several times every day I observed the portions of the polyp with a magnifying glass. On the 4th December, that is to say on the ninth day after having cut the polyp, I seemed in the morning to be able to perceive, on the edges of the anterior end of the second part (the part that had neither head nor arms), three little points arising from those edges. They immediately made me think of the horns that serve as the legs and arms of the polyp. Nevertheless I did not want to decide at once that these were actually arms that were beginning to grow. Throughout the next day I continually observed these points: this excited me extremely, and awaited with impatience the moment when I should know with certainty what they were. At last, on the following day, they were so big that there was no longer any room for doubt that they were actually arms growing at the anterior extremity of this second part. The next day two more arms started to grow out, and a few days later three more. The second part thus had eight of them, and they were all in a short time as long as those of the first part, that is to say as long as those the polyp possessed before it was cut. I then no longer found any difference between the second part and a polyp that had never been cut. I had remarked the same thing about the first part since the day after the operation. When I observed them with the magnifying glass with all the attention of which I was capable, each of the two appeared perceptibly to be a complete polyp, and they performed all the functions that were known to me: they extended, contracted, and walked.
Mémoires, pour servir à l'histoire d'un genre de polyps d'eau douce à bras en forme de cornes (1744), 7-16. Trans. John R. Baker, in Abraham Trembley of Geneva: Scientist and Philosopher 1710-1784 (1952), 32.
Science quotes on:  |  Anterior (3)  |  Appeared (4)  |  Arm (11)  |  Attention (52)  |  Cut (22)  |  Difference (161)  |  Doubt (79)  |  Edge (9)  |  Extremity (2)  |  Glass (25)  |  Knowledge (853)  |  Leg (10)  |  Long (26)  |  Magnifying (2)  |  Observation (332)  |  Perceive (5)  |  Polyp (4)  |  Remark (10)  |  Room (13)

Some may claim that is it unscientific to speak of the operations of nature as “miracles.” But the point of the title lies in the paradox of finding so many wonderful things ... subservient to the rule of law.
In Nature's Miracles: Familiar Talks on Science (1899), Vol. 1, Introduction, v.
Science quotes on:  |  Claim (33)  |  Find (90)  |  Law (327)  |  Lying (5)  |  Many (2)  |  Miracle (30)  |  Nature (670)  |  Paradox (26)  |  Point (35)  |  Rule (74)  |  Speaking (38)  |  Subservient (3)  |  Thing (37)  |  Title (6)  |  Unscientific (7)  |  Wonderful (11)

Strange as it may sound, the power of mathematics rests on its evasion of all unnecessary thought and on its wonderful saving of mental operations.
As quoted, without source, in E.T. Bell, Men of Mathematics (1937), Vol. 1, l (Roman numeral 'l').
Science quotes on:  |  Mathematics (450)  |  Mental (31)  |  Save (17)  |  Thought (228)  |  Wonder (86)

The bitterness of the potion, and the abhorrence of the patient are necessary circumstances to the operation. It must be something to trouble and disturb the stomach that must purge and cure it.
In Tryon Edwards (ed.), A Dictionary of Thoughts (1908), 339.
Science quotes on:  |  Abhorrence (7)  |  Bitterness (3)  |  Circumstance (35)  |  Cure (57)  |  Disturbance (13)  |  Medicine (215)  |  Necessity (102)  |  Patient (69)  |  Purge (4)  |  Stomach (13)  |  Trouble (30)

The function of Art is to imitate Nature in her manner of operation. Our understanding of “her manner of operation” changes according to advances in the sciences.
A Year from Monday (1969), 31.
Science quotes on:  |  Advance (66)  |  Change (181)  |  Manner (16)  |  Nature (670)  |  Science And Art (128)

The horrors of Vivisection have supplanted the solemnity, the thrilling fascination, of the old unetherized operation upon the human sufferer. Their recorded phenomena, stored away by the physiological inquisitor on dusty shelves, are mostly of as little present use to man as the knowledge of a new comet or of a tungstate of zirconium … —contemptibly small compared with the price paid for it in agony and torture.
From address to the Massachusetts Medical Society (7 Jun 1871), 'Medical Education in America', collected in Surgical Anaesthesia: Addresses, and Other Papers (1894, 1900), 309.
Science quotes on:  |  Agony (3)  |  Comet (24)  |  Comparison (41)  |  Contempt (6)  |  Ether (16)  |  Fascination (19)  |  Horror (5)  |  Inquisitor (4)  |  Knowledge (853)  |  New (167)  |  Pay (14)  |  Phenomenon (158)  |  Physiology (53)  |  Price (14)  |  Record (37)  |  Shelf (5)  |  Small (47)  |  Solemnity (4)  |  Store (10)  |  Sufferer (2)  |  Supplanting (2)  |  Thrill (10)  |  Torture (7)  |  Vivisection (7)  |  Zirconium (2)

The inventor and the research man are confused because they both examine results of physical or chemical operations. But they are exact opposites, mirror images of one another. The research man does something and does not care [exactly] what it is that happens, he measures whatever it is. The inventor wants something to happen, but does not care how it happens or what it is that happens if it is not what he wants.
Aphorism listed Frederick Seitz, The Cosmic Inventor: Reginald Aubrey Fessenden (1866-1932) (1999), 54, being Transactions of the American Philosophical Society, Held at Philadelphia For Promoting Useful Knowledge, Vol. 86, Pt. 6.
Science quotes on:  |  Care (48)  |  Chemical (51)  |  Exactness (17)  |  Examination (55)  |  Happening (29)  |  Image (23)  |  Inventor (36)  |  Measurement (132)  |  Mirror (14)  |  Opposite (25)  |  Physical (47)  |  Researcher (9)  |  Result (164)  |  Want (53)

The laws of nature are the rules according to which the effects are produced; but there must be a cause which operates according to these rules. The laws of navigation never navigated a ship. The rules of architecture never built a house.
'Essay I: On Active Power In General: Chapter 6: On the Efficient Causes of the Phenomena of Nature', Essays on the Active Powers of Man (1785), Chap. 6, 47.
Science quotes on:  |  Architecture (26)  |  Building (48)  |  Cause (166)  |  Effect (94)  |  House (24)  |  Law Of Nature (40)  |  Navigation (8)  |  Production (80)  |  Rule (74)  |  Ship (23)

The maintenance of security … required every member of the project to attend strictly to his own business. The result was an operation whose efficiency was without precedent.
In And Now It Can Be Told: The Story Of The Manhattan Project (1962), 414.
Science quotes on:  |  Attend (4)  |  Business (35)  |  Efficiency (21)  |  Maintenance (11)  |  Manhattan Project (11)  |  Member (14)  |  Precedent (3)  |  Project (10)  |  Required (4)  |  Result (164)  |  Security (18)  |  Strictly (2)

The mathematics of cooperation of men and tools is interesting. Separated men trying their individual experiments contribute in proportion to their numbers and their work may be called mathematically additive. The effect of a single piece of apparatus given to one man is also additive only, but when a group of men are cooperating, as distinct from merely operating, their work raises with some higher power of the number than the first power. It approaches the square for two men and the cube for three. Two men cooperating with two different pieces of apparatus, say a special furnace and a pyrometer or a hydraulic press and new chemical substances, are more powerful than their arithmetical sum. These facts doubtless assist as assets of a research laboratory.
Quoted from a speech delivered at the fiftieth anniversary of granting of M.I.T's charter, in Guy Suits, 'Willis Rodney Whitney', National Academy of Sciences, Biographical Memoirs (1960), 352.
Science quotes on:  |  Apparatus (22)  |  Arithmetic (49)  |  Assistance (4)  |  Chemical (51)  |  Cooperation (19)  |  Cube (9)  |  Doubtless (5)  |  Experiment (457)  |  Fact (409)  |  Furnace (4)  |  Group (32)  |  Higher (22)  |  Individual (83)  |  Laboratory (96)  |  Mathematics (450)  |  Power (144)  |  Powerful (28)  |  Press (10)  |  Proportion (33)  |  Research (395)  |  Special (35)  |  Square (6)  |  Substance (54)  |  Sum (22)  |  Three (8)  |  Tool (38)  |  Two (12)

The operating management, providing as it does for the care of near thirty thousand miles of railway, is far more important than that for construction in which there is comparatively little doing.
In Railway Property: A Treatise on the Construction and Management of Railways (1866), iii.
Science quotes on:  |  Care (48)  |  Comparatively (3)  |  Construction (52)  |  Doing (33)  |  Importance (148)  |  Little (44)  |  Management (8)  |  Railroad (10)

The problems of analyzing war operations are … rather nearer, in general, to many problems, say of biology or of economics, than to most problems of physics, where usually a great deal of numerical data are ascertainable about relatively simple phenomena.
In report at the British Association Annual Meeting, Dundee (30 Aug 1947), published in 'Operational Research in War and Peace', The Advancement of Science (1948), 17, 320-332. Collected in P.M.S. Blackett, Studies of War: Nuclear and Conventional (1962), 177.
Science quotes on:  |  Analysis (101)  |  Biology (105)  |  Data (71)  |  Economics (22)  |  Physics (202)  |  Problem (234)  |  War (97)

The responsibility for maintaining the composition of the blood in respect to other constituents devolves largely upon the kidneys. It is no exaggeration to say that the composition of the blood is determined not by what the mouth ingests but by what the kidneys keep; they are the master chemists of our internal environment, which, so to speak, they synthesize in reverse. When, among other duties, they excrete the ashes of our body fires, or remove from the blood the infinite variety of foreign substances which are constantly being absorbed from our indiscriminate gastrointestinal tracts, these excretory operations are incidental to the major task of keeping our internal environment in an ideal, balanced state. Our glands, our muscles, our bones, our tendons, even our brains, are called upon to do only one kind of physiological work, while our kidneys are called upon to perform an innumerable variety of operations. Bones can break, muscles can atrophy, glands can loaf, even the brain can go to sleep, without immediately endangering our survival, but when the kidneys fail to manufacture the proper kind of blood neither bone, muscle, gland nor brain can carry on.
'The Evolution of the Kidney', Lectures on the Kidney (1943), 3.
Science quotes on:  |  Absorption (5)  |  Ash (7)  |  Atrophy (2)  |  Balance (29)  |  Blood (71)  |  Body (127)  |  Bone (39)  |  Brain (128)  |  Break (22)  |  Chemist (66)  |  Composition (36)  |  Condition (90)  |  Constant (24)  |  Constituent (12)  |  Determined (4)  |  Environment (95)  |  Exaggeration (6)  |  Excretion (4)  |  Failure (79)  |  Fire (75)  |  Foreign (9)  |  Gland (7)  |  Ideal (32)  |  Immediate (10)  |  Incidental (5)  |  Indiscriminate (2)  |  Infinite (57)  |  Innumerable (10)  |  Internal (8)  |  Keep (12)  |  Kidney (9)  |  Loaf (2)  |  Major (12)  |  Manufacturing (18)  |  Master (28)  |  Mouth (13)  |  Muscle (28)  |  Performance (20)  |  Proper (19)  |  Removal (10)  |  Responsibility (28)  |  Reverse (9)  |  Sleep (27)  |  State (47)  |  Substance (54)  |  Survival (37)  |  Synthesis (33)  |  Task (43)  |  Variety (36)

The thesis which I venture to sustain, within limits, is simply this, that the savage state in some measure represents an early condition of mankind, out of which the higher culture has gradually been developed or evolved, by processes still in regular operation as of old, the result showing that, on the whole, progress has far prevailed over relapse.
In Primitive Culture (1871), Vol. 1, 28.
Science quotes on:  |  Condition (90)  |  Culture (53)  |  Development (165)  |  Evolution (375)  |  Limit (41)  |  Mankind (132)  |  Process (132)  |  Progress (249)  |  Regular (4)  |  Relapse (2)  |  Savage (12)  |  State (47)  |  Thesis (8)  |  Venture (7)

The whole of the developments and operations of analysis are now capable of being executed by machinery ... As soon as an Analytical Engine exists, it will necessarily guide the future course of science.
Passages From the Life of a Philosopher (1864), 136-137.
Science quotes on:  |  Analysis (101)  |  Analytical Engine (3)  |  Computer (61)  |  Development (165)  |  Execution (8)  |  Future (142)  |  Guide (22)  |  Machine (79)  |  Necessity (102)  |  Science (1103)

There's no question in my mind that the capability of [the space shuttle] to put 65,000 pounds in low earth orbit—to put payloads up there cheaper than we've been able to do it before, not having to throw away the booster—will absolutely revolutionize the way we do business here on earth in ways that we just can't imagine. It will help develop science and technology. With the space shuttle—when we get it operational—we'll be able to do in 5 or 10 years what it would take us 20 to 30 years to do otherwise in science and technology development.
Interview for U.S. News & World Report (13 Apr 1981), 56.
Science quotes on:  |  Ability (51)  |  Absoluteness (3)  |  Before (6)  |  Business (35)  |  Capability (32)  |  Cheaper (4)  |  Development (165)  |  Earth (303)  |  Imagination (168)  |  Mind (334)  |  Orbit (39)  |  Otherwise (4)  |  Question (196)  |  Revolution (43)  |  Science And Technology (11)  |  Space Shuttle (8)  |  Throw Away (2)  |  Way (35)  |  Years (5)

We are … led to a somewhat vague distinction between what we may call “hard” data and “soft” data. This distinction is a matter of degree, and must not be pressed; but if not taken too seriously it may help to make the situation clear. I mean by “hard” data those which resist the solvent influence of critical reflection, and by “soft” data those which, under the operation of this process, become to our minds more or less doubtful.
Our Knowledge of the External World (1925), 75.
Science quotes on:  |  Clear (22)  |  Critical (13)  |  Data (71)  |  Distinction (23)  |  Doubt (79)  |  Hard (26)  |  Influence (62)  |  Mind (334)  |  Process (132)  |  Reflection (35)  |  Resistance (18)  |  Seriousness (9)  |  Situation (23)  |  Soft (5)  |  Solvent (4)  |  Vagueness (8)

We did not design our organization to operate in perpetuity. Consequently, our people were able to devote themselves exclusively to the task at hand, and had no reason to engage in independent empire-building.
In And Now It Can Be Told: The Story Of The Manhattan Project (1962), 415.
Science quotes on:  |  Design (60)  |  Devote (6)  |  Empire (8)  |  Exclusively (3)  |  Independent (22)  |  Manhattan Project (11)  |  Organization (63)  |  Perpetuity (5)  |  Reason (211)  |  Task (43)

We may consequently regard it as certain that, neither by natural agencies of inanimate matter, nor by the operations arbitrarily effected by animated Creatures, can there be any change produced in the amount of mechanical energy in the Universe.
In Draft of 'On a Universal Tendency … ', PA 137, Kelvin Collection, Cambridge Univ Library. As cited in Crosbie Smith, The Science of Energy: A Cultural History of Energy Physics in Victorian Britain (1998), 139.
Science quotes on:  |  Agency (10)  |  Amount (14)  |  Animated (2)  |  Arbitrary (10)  |  Certainty (81)  |  Change (181)  |  Consequence (53)  |  Creature (65)  |  Effect (94)  |  Energy (126)  |  Inanimate (10)  |  Matter (169)  |  Mechanical (17)  |  Natural (71)  |  Produced (7)  |  Regard (23)  |  Universe (339)

We must painfully acknowledge that, precisely because of its great intellectual developments, the best of man's domesticated animals—the dog—most often becomes the victim of physiological experiments. Only dire necessity can lead one to experiment on cats—on such impatient, loud, malicious animals. During chronic experiments, when the animal, having recovered from its operation, is under lengthy observation, the dog is irreplaceable; moreover, it is extremely touching. It is almost a participant in the experiments conducted upon it, greatly facilitating the success of the research by its understanding and compliance.
'Vivisection' (1893), as translated in Daniel P. Todes, Pavlov's Physiology Factory: Experiment, Interpretation, Laboratory Enterprise (2002), 123.
Science quotes on:  |  Acknowledgment (9)  |  Animal (188)  |  Cat (18)  |  Chronic (4)  |  Conduct (10)  |  Development (165)  |  Dog (29)  |  Domestication (2)  |  Experiment (457)  |  Facilitation (2)  |  Impatience (7)  |  Intellect (125)  |  Irreplaceable (2)  |  Loudness (3)  |  Malice (2)  |  Necessity (102)  |  Pain (65)  |  Participant (2)  |  Precision (25)  |  Recovery (14)  |  Research (395)  |  Success (139)  |  Touching (4)  |  Understanding (291)

We seem to be heading for a state of affairs in which the determination of whether or not Doomsday has arrived will be made either by an automatic device ... or by a pre-programmed president who, whether he knows it or not, will be carrying out orders written years before by some operations analyst.
In The Race to Oblivion, (1970), 232.
Science quotes on:  |  Arrival (7)  |  Automatic (12)  |  Before (6)  |  Determination (46)  |  Device (16)  |  Doomsday (2)  |  Knowledge (853)  |  Order (87)  |  President (6)  |  Seeming (9)  |  State Of affairs (2)  |  Writing (70)  |  Year (105)

We set out, therefore, with the supposition that an organised body is not produced by a fundamental power which is guided in its operation by a definite idea, but is developed, according to blind laws of necessity, by powers which, like those of inorganic nature, are established by the very existence of matter. As the elementary materials of organic nature are not different from those of the inorganic kingdom, the source of the organic phenomena can only reside in another combination of these materials, whether it be in a peculiar mode of union of the elementary atoms to form atoms of the second order, or in the arrangement of these conglomerate molecules when forming either the separate morphological elementary parts of organisms, or an entire organism.
Mikroskopische Untersuchungen über die Uebereinstimmung in der Struktur und dem Wachsthum der Thiere und Pflanzen (1839). Microscopic Researches into the Accordance in the Structure and Growth of Animals and Plants, trans. Henry Smith (1847), 190-1.
Science quotes on:  |  Arrangement (35)  |  Atom (188)  |  Blind (14)  |  Combination (51)  |  Definite (9)  |  Development (165)  |  Difference (161)  |  Elementary (18)  |  Fundamental (72)  |  Idea (302)  |  Inorganic (10)  |  Kingdom (21)  |  Law (327)  |  Material (81)  |  Molecule (98)  |  Morphology (15)  |  Nature (670)  |  Necessity (102)  |  Organic (30)  |  Organism (88)  |  Organization (63)  |  Phenomenon (158)  |  Power (144)  |  Supposition (31)  |  Union (10)

We should greatly err, if we endeavoured to force all ancient nature into a close comparison with existing operations.
Siluria (1854), 481.
Science quotes on:  |  Comparison (41)  |  Endeavour (24)  |  Error (174)  |  Existence (177)  |  Nature (670)

When not protected by law, by popular favor or superstition, or by other special circumstances, [birds] yield very readily to the influences of civilization, and, though the first operations of the settler are favorable to the increase of many species, the great extension of rural and of mechanical industry is, in a variety of ways, destructive even to tribes not directly warred upon by man.
In Man and Nature, (1864), 93-93.
Science quotes on:  |  Agriculture (25)  |  Bird (66)  |  Circumstance (35)  |  Civilization (114)  |  Conservation (57)  |  Ecology (30)  |  Extension (17)  |  Extinction (45)  |  Favor (7)  |  Favorable (4)  |  First (64)  |  Great (103)  |  Increase (52)  |  Industry (66)  |  Influence (62)  |  Law (327)  |  Machinery (16)  |  Popular (14)  |  Protection (16)  |  Rural (3)  |  Special (35)  |  Species (116)  |  Superstition (40)  |  Tribe (5)  |  Variety (36)  |  War (97)  |  Way (35)  |  Yield (10)

When the logician has resolved each demonstration into a host of elementary operations, all of them correct, he will not yet be in possession of the whole reality, that indefinable something that constitutes the unity ... Now pure logic cannot give us this view of the whole; it is to intuition that we must look for it.
Science and Method (1914 edition, reprint 2003), 126.
Science quotes on:  |  Correct (25)  |  Demonstration (43)  |  Elementary (18)  |  Intuition (27)  |  Logic (149)  |  Logician (3)  |  Reality (80)  |  Resolve (8)  |  Unity (29)  |  Whole (57)

Without the suitable conditions life could not exist. But both life and its conditions set forth the operations of inscrutable Power. We know not its origin; we know not its end. And the presumption, if not the degradation, rests with those who place upon the throne of the universe a magnified image of themselves, and make its doings a mere colossal imitation of their own.
In Forms of Water in Clouds and Rivers, Ice and Glaciers (1872), 125.
Science quotes on:  |  Colossal (6)  |  Condition (90)  |  Degradation (8)  |  Doing (33)  |  End (70)  |  Existence (177)  |  God (267)  |  Image (23)  |  Imitation (9)  |  Inscrutability (2)  |  Knowledge (853)  |  Life (588)  |  Magnification (8)  |  Origin (50)  |  Place (45)  |  Power (144)  |  Presumption (8)  |  Rest (36)  |  Suitability (11)  |  Themselves (5)  |  Universe (339)  |  Without (12)

In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion. (1987) -- Carl Sagan
Sitewide search within all Today In Science History pages:
Custom Quotations Search - custom search within only our quotations pages:
Visit our Science and Scientist Quotations index for more Science Quotes from archaeologists, biologists, chemists, geologists, inventors and inventions, mathematicians, physicists, pioneers in medicine, science events and technology.

Names index: | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |

Categories index: | 1 | 2 | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |