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

Today in Science History - Quickie Quiz
Who said: “I was going to record talking... the foil was put on; I then shouted 'Mary had a little lamb',... and the machine reproduced it perfectly.”
more quiz questions >>
Home > Category Index for Science Quotations > Category Index I > Category: Introduction

Introduction Quotes (28 quotes)

At the beginning of its existence as a science, biology was forced to take cognizance of the seemingly boundless variety of living things, for no exact study of life phenomena was possible until the apparent chaos of the distinct kinds of organisms had been reduced to a rational system. Systematics and morphology, two predominantly descriptive and observational disciplines, took precedence among biological sciences during the eighteenth and nineteenth centuries. More recently physiology has come to the foreground, accompanied by the introduction of quantitative methods and by a shift from the observationalism of the past to a predominance of experimentation.
In Genetics and the Origin of Species (1937, 1982), 6.
Science quotes on:  |  18th Century (15)  |  19th Century (16)  |  Biology (106)  |  Boundless (9)  |  Chaos (46)  |  Description (54)  |  Discipline (21)  |  Experiment (460)  |  Foreground (3)  |  Morphology (15)  |  Observation (339)  |  Organism (90)  |  Physiology (54)  |  Precedence (2)  |  Predominance (2)  |  Rational (22)  |  Shift (11)  |  Systematic (10)  |  Variety (37)

But as my conclusions have lately been much misrepresented, and it has been stated that I attribute the modification of species exclusively to natural selection, I may be permitted to remark that in the first edition of this work, and subsequently, I placed in a most conspicuous position—namely, at the close of the Introduction—the following words: “I am convinced that natural selection has been the main but not the exclusive means of modification.” This has been of no avail. Great is the power of steady misrepresentation; but the history of science shows that fortunately this power does not long endure.
In The Origin of Species by Means of Natural Selection with additions and corrections from sixth and last English edition (1899), Vol. 2, 293.
Science quotes on:  |  Attribute (15)  |  Conclusion (91)  |  Endure (7)  |  History Of Science (42)  |  Misrepresentation (3)  |  Modification (26)  |  Natural Selection (60)  |  Origin Of Species (36)  |  Remark (11)  |  Species (119)  |  State (50)

Geology is rapidly taking its place as an introduction to the higher history of man. If the author has sought to exalt a favorite science, it has been with the desire that man—in whom geological history had its consummation, the prophecies of the successive ages their fulfilment—might better comprehend his own nobility and the true purpose of his existence.
Concluding remark in Preface (1 Nov 1862), in Manual of Geology, Treating of the Principles of the Science (1863), ix.
Science quotes on:  |  Comprehension (38)  |  Consummation (2)  |  Existence (180)  |  Fulfilment (3)  |  Geology (165)  |  History (206)  |  Man (288)  |  Nobility (3)  |  Prophecy (5)  |  Purpose (96)

I am now convinced that we have recently become possessed of experimental evidence of the discrete or grained nature of matter, which the atomic hypothesis sought in vain for hundreds and thousands of years. The isolation and counting of gaseous ions, on the one hand, which have crowned with success the long and brilliant researches of J.J. Thomson, and, on the other, agreement of the Brownian movement with the requirements of the kinetic hypothesis, established by many investigators and most conclusively by J. Perrin, justify the most cautious scientist in now speaking of the experimental proof of the atomic nature of matter, The atomic hypothesis is thus raised to the position of a scientifically well-founded theory, and can claim a place in a text-book intended for use as an introduction to the present state of our knowledge of General Chemistry.
In Grundriss der allgemeinen Chemie (4th ed., 1909), Preface, as cited by Erwin N. Hiebert and Hans-Gunther Korber in article on Ostwald in Charles Coulston Gillespie (ed.), Dictionary of Scientific Biography Supplement 1, Vol 15-16, 464.
Science quotes on:  |  Atom (190)  |  Brilliant (9)  |  Robert Brown (2)  |  Caution (12)  |  Chemistry (189)  |  Claim (36)  |  Conviction (33)  |  Counting (4)  |  Crown (13)  |  Discrete (3)  |  Evidence (107)  |  Experiment (460)  |  Gas (35)  |  Granular (2)  |  Hypothesis (187)  |  Ion (6)  |  Isolation (23)  |  Long (29)  |  Matter (176)  |  Jean Perrin (2)  |  Possession (28)  |  Proof (162)  |  Recent (16)  |  Research (400)  |  Scientist (306)  |  Seeking (30)  |  Speaking (38)  |  Success (144)  |  Theory (446)  |  Sir J.J. Thomson (11)  |  Vain (18)  |  Year (110)

I presume that few who have paid any attention to the history of the Mathematical Analysis, will doubt that it has been developed in a certain order, or that that order has been, to a great extent, necessary—being determined, either by steps of logical deduction, or by the successive introduction of new ideas and conceptions, when the time for their evolution had arrived. And these are the causes that operate in perfect harmony. Each new scientific conception gives occasion to new applications of deductive reasoning; but those applications may be only possible through the methods and the processes which belong to an earlier stage.
Explaining his choice for the exposition in historical order of the topics in A Treatise on Differential Equations (1859), Preface, v-vi.
Science quotes on:  |  Analysis (102)  |  Application (92)  |  Cause (167)  |  Conception (42)  |  Deduction (41)  |  Development (172)  |  Earlier (8)  |  Evolution (378)  |  Harmony (35)  |  History (206)  |  Idea (313)  |  Logic (154)  |  Mathematics (471)  |  Necessity (104)  |  New (178)  |  Occasion (10)  |  Order (90)  |  Process (144)  |  Reasoning (70)  |  Scientific (95)  |  Successive (9)

If to be the Author of new things, be a crime; how will the first Civilizers of Men, and makers of Laws, and Founders of Governments escape? Whatever now delights us in the Works of Nature, that excells the rudeness of the first Creation, is New. Whatever we see in Cities, or Houses, above the first wildness of Fields, and meaness of Cottages, and nakedness of Men, had its time, when this imputation of Novelty, might as well have bin laid to its charge. It is not therefore an offence, to profess the introduction of New things, unless that which is introduc'd prove pernicious in itself; or cannot be brought in, without the extirpation of others, that are better.
The History of the Royal Society (1667), 322.
Science quotes on:  |  Author (30)  |  City (18)  |  Creation (171)  |  Crime (13)  |  Delight (28)  |  Excellence (20)  |  Extirpation (2)  |  Field (88)  |  Founder (11)  |  Government (60)  |  House (27)  |  Law (334)  |  Nature (688)  |  Novelty (12)  |  Offence (3)  |  Pernicious (2)  |  Rudeness (3)  |  Wildness (4)  |  Work (283)

In the world's history certain inventions and discoveries occurred of peculiar value, on account of their great efficiency in facilitating all other inventions and discoveris. Of these were the art of writing and of printing, the discovery of America, and the introduction of patent laws. The date of the first … is unknown; but it certainly was as much as fifteen hundred years before the Christian era; the second—printing—came in 1436, or nearly three thousand years after the first. The others followed more rapidly—the discovery of America in 1492, and the first patent laws in 1624.
Lecture 'Discoveries, Inventions and Improvements' (22 Feb 1860) in John George Nicolay and John Hay (eds.), Complete Works of Abraham Lincoln (1894), Vol. 5, 109-10.
Science quotes on:  |  America (54)  |  Discovery (480)  |  Invention (222)  |  Patent (20)  |  Printing (10)  |  Writing (70)

Medicine rests upon four pillars—philosophy, astronomy, alchemy, and ethics. The first pillar is the philosophical knowledge of earth and water; the second, astronomy, supplies its full understanding of that which is of fiery and airy nature; the third is an adequate explanation of the properties of all the four elements—that is to say, of the whole cosmos—and an introduction into the art of their transformations; and finally, the fourth shows the physician those virtues which must stay with him up until his death, and it should support and complete the three other pillars.
Vas Buch Paragranum (c.1529-30), in J. Jacobi (ed.), Paracelsus: Selected Writings (1951), 133-4.
Science quotes on:  |  Adequacy (4)  |  Air (108)  |  Alchemy (19)  |  Art (115)  |  Astronomy (131)  |  Completion (14)  |  Cosmos (28)  |  Death (219)  |  Earth (313)  |  Element (88)  |  Ethic (9)  |  Explanation (128)  |  Fire (79)  |  Four (3)  |  Knowledge (879)  |  Medicine (222)  |  Philosophy (164)  |  Physician (197)  |  Pillar (4)  |  Property (70)  |  Stay (3)  |  Supply (21)  |  Transformation (34)  |  Understanding (297)  |  Virtue (33)  |  Water (171)

Much later, when I discussed the problem with Einstein, he remarked that the introduction of the cosmological term was the biggest blunder he ever made in his life. But this “blunder,” rejected by Einstein, is still sometimes used by cosmologists even today, and the cosmological constant denoted by the Greek letter Λ rears its ugly head again and again and again.
My World Line (1970). Cited in Edward Robert Harrison, Cosmology: the Science of the Universe (2000), 379, which adds: “The Λ force is referred to by various names, such as the cosmological constant, cosmological term, cosmical constant or cosmical term.”
Science quotes on:  |  Blunder (10)  |  Constant (24)  |  Discussion (25)  |  Albert Einstein (202)  |  Greek (28)  |  Head (32)  |  Letter (27)  |  Rear (4)  |  Rejection (20)  |  Remark (11)  |  Term (55)  |  Ugly (5)

My father’s collection of fossils was practically unnamed, but the appearance of Phillips’ book [Geology of the Yorkshire Coast], in which most of our specimens were figured, enabled us to remedy this defect. Every evening was devoted by us to accomplishing the work. This was my first introduction to true scientific study. ... Phillips’ accurate volume initiated an entirely new order of things. Many a time did I mourn over the publication of this book, and the consequences immediately resulting from it. Instead of indulging in the games and idleness to which most lads are prone, my evenings throughout a long winter were devoted to the detested labour of naming these miserable stones. Such is the short-sightedness of boyhood. Pursuing this uncongenial work gave me in my thirteenth year a thorough practical familiarity with the palaeontological treasures of Eastern Yorkshire. This early acquisition happily moulded the entire course of my future life.
In Reminiscences of a Yorkshire naturalist (1896), 12.
Science quotes on:  |  Accomplishment (41)  |  Acquisition (31)  |  Appearance (64)  |  Autobiography (50)  |  Boyhood (2)  |  Coast (9)  |  Collection (33)  |  Consequence (53)  |  Detest (3)  |  Devote (6)  |  Evening (10)  |  Familiarity (12)  |  Father (24)  |  Fossil (81)  |  Future (145)  |  Game (35)  |  Geology (165)  |  Idleness (7)  |  Indulge (5)  |  Labour (33)  |  Life (606)  |  Miserable (2)  |  Mold (18)  |  Paleontology (19)  |  Practical (55)  |  Publication (81)  |  Result (167)  |  Scientific (95)  |  Specimen (11)  |  Study (233)  |  Treasure (22)  |  True (49)  |  Winter (16)  |  Yorkshire (2)

My impression about the Panama Canal is that the great revolution it is going to introduce in the trade of the world is in the trade between the east and the west coast of the United States.
Speech at a banquet in San Francisco (5 Oct 1909). Collected in Presidential addresses and state papers, from March 4, 1909 to March 4, 1910 (1910), 330.
Science quotes on:  |  Coast (9)  |  East (5)  |  Impression (35)  |  Panama Canal (2)  |  Revolution (45)  |  Trade (12)  |  United States (19)  |  West (6)  |  World (365)

Not one of them [formulae] can be shown to have any existence, so that the formula of one of the simplest of organic bodies is confused by the introduction of unexplained symbols for imaginary differences in the mode of combination of its elements… It would be just as reasonable to describe an oak tree as composed of blocks and chips and shavings to which it may be reduced by the hatchet, as by Dr Kolbe’s formula to describe acetic acid as containing the products which may be obtained from it by destructive influences. A Kolbe botanist would say that half the chips are united with some of the blocks by the force parenthesis; the other half joined to this group in a different way, described by a buckle; shavings stuck on to these in a third manner, comma; and finally, a compound of shavings and blocks united together by a fourth force, juxtaposition, is joined to the main body by a fifth force, full stop.
'On Dr. Kolbe's Additive Formulae', Quarterly Journal of the Chemical Society (1855), 7, 133-4.
Science quotes on:  |  Acetic Acid (2)  |  Formula (40)  |  Hermann Kolbe (4)  |  Oak Tree (3)  |  Symbol (25)

Science is a human activity, and the best way to understand it is to understand the individual human beings who practise it. Science is an art form and not a philosophical method. The great advances in science usually result from new tools rather than from new doctrines. ... Every time we introduce a new tool, it always leads to new and unexpected discoveries, because Nature's imagination is richer than ours.
Concluding remark from 'The Scientist As Rebel' American Mathemtical Monthly (1996), 103, 805. Reprinted in The Scientist as Rebel (2006), 17-18, identified as originally written for a lecture (1992), then published as an essay in the New York Review.
Science quotes on:  |  Activity (57)  |  Advance (70)  |  Discovery (480)  |  Doctrine (36)  |  Human (225)  |  Imagination (175)  |  Nature (688)  |  New (178)  |  Philosophy (164)  |  Practise (2)  |  Result (167)  |  Rich (20)  |  Science (1133)  |  Science And Art (130)  |  Tool (40)  |  Understanding (297)  |  Unexpected (17)

Search the scriptures of human achievement and you cannot find any to equal in beneficence the introduction of Anæsthesia, Sanitation, with ail that it includes, and Asepsis—a short half century’s contribution towards the practical solution of the problems of human suffering, regarded as eternal and insoluble.
Address to the Canadian Medical association, Montreal (1902). Collected in 'Chavinism in Medicine', Aequanimitas (1904), 283.
Science quotes on:  |  Achievement (96)  |  Anaesthesia (3)  |  Asepsis (2)  |  Beneficence (2)  |  Century (61)  |  Contribution (36)  |  Eternal (26)  |  Insoluble (6)  |  Practical (55)  |  Problem (240)  |  Sanitation (3)  |  Scripture (4)  |  Solution (136)  |  Suffering (23)  |  Toward (4)

The advancement of agriculture, commerce and manufactures, by all proper means, will not, I trust, need recommendation. But I cannot forbear intimating to you the expediency of giving effectual encouragement as well to the introduction of new and useful inventions from abroad, as to the exertions of skill and genius in producing them at home.
Early suggestion for awarding patent protection. In First Annual Message to Congress on the State of the Union (8 Jan 1790).
Science quotes on:  |  Abroad (4)  |  Advancement (30)  |  Agriculture (33)  |  Commerce (11)  |  Encouragement (15)  |  Exertion (8)  |  Expediency (3)  |  Genius (137)  |  Home (26)  |  Invention (222)  |  Manufacture (7)  |  Means (42)  |  Patent (20)  |  Producing (6)  |  Proper (19)  |  Recommendation (8)  |  Skill (39)  |  Useful (36)

The history of the knowledge of the phenomena of life and of the organized world can be divided into two main periods. For a long time anatomy, and particularly the anatomy of the human body, was the α and ω of scientific knowledge. Further progress only became possible with the discovery of the microscope. A long time had yet to pass until through Schwann the cell was established as the final biological unit. It would mean bringing coals to Newcastle were I to describe here the immeasurable progress which biology in all its branches owes to the introduction of this concept of the cell concept. For this concept is the axis around which the whole of the modern science of life revolves.
Nobel Lecture (11 Dec 1908) 'Partial Cell Functions.' Collected in Nobel Lectures: Physiology or Medicine 1901-1921 (1967), 304.
Science quotes on:  |  Anatomy (40)  |  Cell (104)  |  Microscope (55)  |  Theodor Schwann (9)

The introduction of men into the lying in chamber in place of female attendants, has increased the suffering and dangers of childbearing women, and brought multiplied injuries and fatalities upon mothers and children; it violates the sensitive feelings of husbands and wives and causes an untold amount of domestic misery. The unlimited intimacy between a male profession and the female population silently and effectually wears away female delicacy and professional morality, and tends probably more than any other cause in existence, to undermine the foundation of public virtue.
Man-midwifery Exposed and Corrected (1848) quoted in The Male Midwife and the Female Doctor: The Gynecology Controversy in Nineteenth Century America Charles Rosenburg and Carroll Rovenberg Smith (Editors) publ. Arno, 1974.
Science quotes on:  |  Birth (60)  |  Doctor (66)

The most consequential change in man's view of the world, of living nature and of himself came with the introduction, over a period of some 100 years beginning only in the 18th century, of the idea of change itself, of change over periods of time: in a word, of evolution.
'Evolution', Scientific American (Jul 1978), 239:1, 47.
Science quotes on:  |  18th Century (15)  |  Change (186)  |  Evolution (378)  |  Idea (313)  |  Man (288)  |  Nature (688)  |  Period (41)  |  Time (252)  |  View (60)  |  World (365)

The number of travellers by gigs, the outside of coaches, and on horseback, have, since the introduction of railways, been prodigiously diminished; and as, in addition, the members of the medical faculty having lent their aid to run down the use of water-proof (apparently having found it decided enemy against their best friends colds and catarrhs), the use of the article [the Macintosh] in the form of cloaks, etc., has of late become comparatively extinct.
A Biographical Memoir of the late Charles Macintosh Esq FRS (1847), 89.
Science quotes on:  |  Coach (3)  |  Cold (29)  |  Diminish (6)  |  Enemy (29)  |  Extinct (4)  |  Friend (37)  |  Horseback (2)  |  Macintosh (2)  |  Outside (16)  |  Physician (197)  |  Railway (6)  |  Traveler (10)

The study of mathematics is apt to commence in disappointment. The important applications of the science, the theoretical interest of its ideas, and the logical rigour of its methods all generate the expectation of a speedy introduction to processes of interest. We are told that by its aid the stars are weighed and the billions of molecules in a drop of water are counted. Yet, like the ghost of Hamlet's father, this great science eludes the efforts of our mental weapons to grasp it.
Opening to An Introduction to Mathematics (1911), 7.
Science quotes on:  |  Application (92)  |  Billion (29)  |  Commencement (5)  |  Disappointment (8)  |  Drop (14)  |  Effort (59)  |  Eluding (2)  |  Expectation (43)  |  Father (24)  |  Ghost (14)  |  Grasping (2)  |  Hamlet (3)  |  Idea (313)  |  Importance (155)  |  Interest (110)  |  Logic (154)  |  Mathematics (471)  |  Mental (35)  |  Method (107)  |  Molecule (98)  |  Process (144)  |  Rigour (10)  |  Science (1133)  |  Star (165)  |  Study (233)  |  Theory (446)  |  Water (171)  |  Weapon (46)

This is all very fine, but it won't do—Anatomy—botany—Nonsense! Sir, I know an old woman in Covent Garden, who understands botany better, and as for anatomy, my butcher can dissect a joint full as well; no, young man, all that is stuff; you must go to the bedside, it is there alone you can learn disease!
Comment to Hans Sloane on Robert Boyle's letter of introduction describing Sloane as a 'ripe scholar, a good botanist, a skilful anatomist'.
Quoted in John D. Comrie, 'Life of Thomas Sydenham, M. D.', in Comrie (ed.), Selected Works of Thomas Sydenham (1922), 2.
Science quotes on:  |  Anatomy (40)  |  Bedside (2)  |  Botany (32)  |  Butcher (5)  |  Disease (197)  |  Dissection (24)  |  Joint (8)  |  Learning (163)  |  Nonsense (20)  |  Understanding (297)  |  Woman (47)

Those who would legislate against the teaching of evolution should also legislate against gravity, electricity and the unreasonable velocity of light, and also should introduce a clause to prevent the use of the telescope, the microscope and the spectroscope or any other instrument of precision which may in the future be invented ,constructed or used for the discovery of truth.
In 'Science and Civilization', Prescott Evening Courier (3 Nov 1925), 6.
Science quotes on:  |  Construction (54)  |  Discovery (480)  |  Electricity (93)  |  Evolution (378)  |  Future (145)  |  Gravity (66)  |  Instrument (53)  |  Invention (222)  |  Legislation (5)  |  Light (161)  |  Microscope (55)  |  Precision (27)  |  Prevention (29)  |  Spectroscope (2)  |  Teaching (87)  |  Telescope (55)  |  Truth (573)  |  Unreasonable (3)  |  Velocity (9)

Thus there is everywhere testimony of the same mind, [there is] no place in creation for the introduction of laws varying from the original design. All is one grand unity.
Sermon (c. 13 Jan. 1895), Mukwonago, Wisconsin, published in Olympia Brown and Gwendolen B. Willis (ed.), Olympia Brown, An Autobiography (1960). Reprinted in Annual Journal of the Universalist Historical Society (1963), vol. 4, 103.
Science quotes on:  |  Creation (171)  |  Design (64)  |  Everywhere (6)  |  Grand (8)  |  Law (334)  |  Mind (346)  |  Original (22)  |  Science And Religion (196)  |  Testimony (7)  |  Unity (29)

To most ... of us, Russia was as mysterious and remote as the other side of the moon and not much more productive when it came to really new ideas or inventions. A common joke of the time [mid 1940s] said that the Russians could not surreptitiously introduce nuclear bombs in suitcases into the United States because they had not yet been able to perfect a suitcase.
In Richard Rhodes, The Making of the Atomic Bomb (1986), 760.
Science quotes on:  |  Ability (51)  |  Common (57)  |  Idea (313)  |  Joke (33)  |  Moon (95)  |  Mystery (87)  |  New (178)  |  Nuclear Bomb (4)  |  Perfection (49)  |  Production (81)  |  Really (5)  |  Remote (15)  |  Russia (5)  |  Side (18)  |  Suitcase (2)  |  United States (19)

What has been learned in physics stays learned. People talk about scientific revolutions. The social and political connotations of revolution evoke a picture of a body of doctrine being rejected, to be replaced by another equally vulnerable to refutation. It is not like that at all. The history of physics has seen profound changes indeed in the way that physicists have thought about fundamental questions. But each change was a widening of vision, an accession of insight and understanding. The introduction, one might say the recognition, by man (led by Einstein) of relativity in the first decade of this century and the formulation of quantum mechanics in the third decade are such landmarks. The only intellectual casualty attending the discovery of quantum mechanics was the unmourned demise of the patchwork quantum theory with which certain experimental facts had been stubbornly refusing to agree. As a scientist, or as any thinking person with curiosity about the basic workings of nature, the reaction to quantum mechanics would have to be: “Ah! So that’s the way it really is!” There is no good analogy to the advent of quantum mechanics, but if a political-social analogy is to be made, it is not a revolution but the discovery of the New World.
From Physics Survey Committee, U.S. National Academy of Sciences, National Research Council, 'The Nature of Physics', in report Physics in Perspective (1973), 61-62. As cited in I. Bernard Cohen, Revolution in Science (1985), 554-555.
Science quotes on:  |  Curiosity (67)  |  Discovery (480)  |  Doctrine (36)  |  Albert Einstein (202)  |  Experiment (460)  |  Fact (414)  |  Insight (38)  |  Landmark (4)  |  Learn (38)  |  Physics (203)  |  Political (8)  |  Quantum Mechanics (22)  |  Recognition (51)  |  Reject (9)  |  Relativity (38)  |  Replace (6)  |  Scientific Revolution (8)  |  Social (26)  |  Understanding (297)

What is peculiar and new to the [19th] century, differentiating it from all its predecessors, is its technology. It was not merely the introduction of some great isolated inventions. It is impossible not to feel that something more than that was involved. … The process of change was slow, unconscious, and unexpected. In the nineteeth century, the process became quick, conscious, and expected. … The whole change has arisen from the new scientific information. Science, conceived not so much in its principles as in its results, is an obvious storehouse of ideas for utilisation. … Also, it is a great mistake to think that the bare scientific idea is the required invention, so that it has only to be picked up and used. An intense period of imaginative design lies between. One element in the new method is just the discovery of how to set about bridging the gap between the scientific ideas, and the ultimate product. It is a process of disciplined attack upon one difficulty after another This discipline of knowledge applies beyond technology to pure science, and beyond science to general scholarship. It represents the change from amateurs to professionals. … But the full self-conscious realisation of the power of professionalism in knowledge in all its departments, and of the way to produce the professionals, and of the importance of knowledge to the advance of technology, and of the methods by which abstract knowledge can be connected with technology, and of the boundless possibilities of technological advance,—the realisation of all these things was first completely attained in the nineteeth century.
In Science and the Modern World (1925, 1997), 96.
Science quotes on:  |  19th Century (16)  |  Amateur (13)  |  Boundless (9)  |  Change (186)  |  Conscious (6)  |  Design (64)  |  Differentiate (4)  |  Expected (4)  |  Ideal (34)  |  Imagination (175)  |  Information (69)  |  Invention (222)  |  Isolated (7)  |  Peculiar (14)  |  Predecessor (16)  |  Professional (15)  |  Realisation (2)  |  Scholarship (9)  |  Storehouse (3)  |  Technology (124)  |  Unconscious (10)  |  Unexpected (17)

When there are too many deer in the forest or too many cats in the barn, nature restores the balance by the introduction of a communicable disease or virus.
Science quotes on:  |  Cat (20)  |  Deer (5)  |  Disease (197)  |  Environment (98)  |  Forest (68)  |  Virus (17)

…it ought to be remembered that there is nothing more difficult to take in hand, more perilous to conduct, or more uncertain in its success, than to take the lead in the introduction of a new order of things. Because the innovator has for enemies all those who have done well under the old conditions, and lukewarm defenders in those who may do well under the new.
The Prince (1532). W. K. Marriott (translator) and Rob McMahon (editor), The Prince (2008), 71.
Science quotes on:  |  Condition (93)  |  Defender (2)  |  Difficulty (96)  |  Enemy (29)  |  Innovation (35)  |  Lukewarm (2)  |  New (178)  |  Order (90)  |  Peril (3)  |  Remember (27)  |  Success (144)  |  Uncertain (4)


Carl Sagan Thumbnail 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
Quotations by:Albert EinsteinIsaac NewtonLord KelvinCharles DarwinSrinivasa RamanujanCarl SaganFlorence NightingaleThomas EdisonAristotleMarie CurieBenjamin FranklinWinston ChurchillGalileo GalileiSigmund FreudRobert BunsenLouis PasteurTheodore RooseveltAbraham LincolnRonald ReaganLeonardo DaVinciMichio KakuKarl PopperJohann GoetheRobert OppenheimerCharles Kettering  ... (more people)

Quotations about:Atomic  BombBiologyChemistryDeforestationEngineeringAnatomyAstronomyBacteriaBiochemistryBotanyConservationDinosaurEnvironmentFractalGeneticsGeologyHistory of ScienceInventionJupiterKnowledgeLoveMathematicsMeasurementMedicineNatural ResourceOrganic ChemistryPhysicsPhysicianQuantum TheoryResearchScience and ArtTeacherTechnologyUniverseVolcanoVirusWind PowerWomen ScientistsX-RaysYouthZoology  ... (more topics)
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 |

who invites your feedback

- 100 -
Sophie Germain
Gertrude Elion
Ernest Rutherford
James Chadwick
Marcel Proust
William Harvey
Johann Goethe
John Keynes
Carl Gauss
Paul Feyerabend
- 90 -
Antoine Lavoisier
Lise Meitner
Charles Babbage
Ibn Khaldun
Euclid
Ralph Emerson
Robert Bunsen
Frederick Banting
Andre Ampere
Winston Churchill
- 80 -
John Locke
Bronislaw Malinowski
Bible
Thomas Huxley
Alessandro Volta
Erwin Schrodinger
Wilhelm Roentgen
Louis Pasteur
Bertrand Russell
Jean Lamarck
- 70 -
Samuel Morse
John Wheeler
Nicolaus Copernicus
Robert Fulton
Pierre Laplace
Humphry Davy
Thomas Edison
Lord Kelvin
Theodore Roosevelt
Carolus Linnaeus
- 60 -
Francis Galton
Linus Pauling
Immanuel Kant
Martin Fischer
Robert Boyle
Karl Popper
Paul Dirac
Avicenna
James Watson
William Shakespeare
- 50 -
Stephen Hawking
Niels Bohr
Nikola Tesla
Rachel Carson
Max Planck
Henry Adams
Richard Dawkins
Werner Heisenberg
Alfred Wegener
John Dalton
- 40 -
Pierre Fermat
Edward Wilson
Johannes Kepler
Gustave Eiffel
Giordano Bruno
JJ Thomson
Thomas Kuhn
Leonardo DaVinci
Archimedes
David Hume
- 30 -
Andreas Vesalius
Rudolf Virchow
Richard Feynman
James Hutton
Alexander Fleming
Emile Durkheim
Benjamin Franklin
Robert Oppenheimer
Robert Hooke
Charles Kettering
- 20 -
Carl Sagan
James Maxwell
Marie Curie
Rene Descartes
Francis Crick
Hippocrates
Michael Faraday
Srinivasa Ramanujan
Francis Bacon
Galileo Galilei
- 10 -
Aristotle
John Watson
Rosalind Franklin
Michio Kaku
Isaac Asimov
Charles Darwin
Sigmund Freud
Albert Einstein
Florence Nightingale
Isaac Newton

Thank you for sharing.
Today in Science History
Sign up for Newsletter
with quiz, quotes and more.