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

Today in Science History - Quickie Quiz
Who said: “A people without children would face a hopeless future; a country without trees is almost as helpless.”
more quiz questions >>
Home > Category Index for Science Quotations > Category Index S > Category: Sleep

Sleep Quotes (29 quotes)

[Describing the effects of over-indulgence in wine:]
But most too passive, when the blood runs low
Too weakly indolent to strive with pain,
And bravely by resisting conquer fate,
Try Circe's arts; and in the tempting bowl
Of poisoned nectar sweet oblivion swill.
Struck by the powerful charm, the gloom dissolves
In empty air; Elysium opens round,
A pleasing frenzy buoys the lightened soul,
And sanguine hopes dispel your fleeting care;
And what was difficult, and what was dire,
Yields to your prowess and superior stars:
The happiest you of all that e'er were mad,
Or are, or shall be, could this folly last.
But soon your heaven is gone: a heavier gloom
Shuts o'er your head; and, as the thundering stream,
Swollen o'er its banks with sudden mountain rain,
Sinks from its tumult to a silent brook,
So, when the frantic raptures in your breast
Subside, you languish into mortal man;
You sleep, and waking find yourself undone,
For, prodigal of life, in one rash night
You lavished more than might support three days.
A heavy morning comes; your cares return
With tenfold rage. An anxious stomach well
May be endured; so may the throbbing head;
But such a dim delirium, such a dream,
Involves you; such a dastardly despair
Unmans your soul, as maddening Pentheus felt,
When, baited round Citheron's cruel sides,
He saw two suns, and double Thebes ascend.
The Art of Preserving Health: a Poem in Four Books (2nd. ed., 1745), Book IV, 108-110.
Science quotes on:  |  Blood (76)  |  Drunk (3)  |  Frenzy (3)  |  Gloom (7)  |  Headache (5)  |  Morning (22)  |  Night (54)  |  Pain (67)  |  Prodigal (2)  |  Wine (20)

A light supper, a good night’s sleep, and a fine morning have often made a hero of the same man, who, by indigestion, a restless night, and a rainy morning would have proved a coward.
Science quotes on:  |  Coward (3)  |  Diet (35)  |  Indigestion (4)  |  Supper (4)

A professor is one who talks in someone else’s sleep.
Attributed.
Science quotes on:  |  Professor (34)

All our civilization is based on invention; before invention, men lived on fruits and nuts and pine cones and slept in caves.
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:  |  Cave (9)  |  Civilization (128)  |  Cone (5)  |  Fruit (52)  |  Invention (239)  |  Mankind (144)  |  Nut (2)  |  Pine (8)

Among those whom I could never pursuade to rank themselves with idlers, and who speak with indignation of my morning sleeps and nocturnal rambles, one passes the day in catching spiders, that he may count their eyes with a microscope; another exhibits the dust of a marigold separated from the flower with a dexterity worthy of Leuwenhoweck himself. Some turn the wheel of electricity; some suspend rings to a lodestone, and find that what they did yesterday, they can do again to-day.—Some register the changes of the wind, and die fully convinced that the wind is changeable.—There are men yet more profound, who have heard that two colorless liquors may produce a color by union, and that two cold bodies will grow hot of they are mingled: they mingle them, and produce the effect expected, say it is strange, and mingle them again.
In Tryon Edwards, A Dictionary of Thoughts (1908), 243.
Science quotes on:  |  Chemistry (197)  |  Cold (30)  |  Color (58)  |  Dexterity (4)  |  Dust (30)  |  Effect (100)  |  Electricity (102)  |  Energy (138)  |  Enquiry (72)  |  Experiment (473)  |  Eye (110)  |  Heat (65)  |  Idleness (7)  |  Antonie van Leeuwenhoek (15)  |  Liquid (22)  |  Lodestone (5)  |  Magnetism (24)  |  Meteorology (22)  |  Microscope (56)  |  Mingle (2)  |  Observation (352)  |  Persuade (4)  |  Physics (215)  |  Pollen (3)  |  Profound (35)  |  Ramble (2)  |  Reaction (52)  |  Repeat (19)  |  Research (413)  |  Spider (6)  |  Strange (39)  |  Wind (43)

At the moment I am occupied by an investigation with Kirchoff which does not allow us to sleep. Kirchoff has made a totally unexpected discovery, inasmuch as he has found out the cause for the dark lines in the solar spectrum and can produce these lines artificially intensified both in the solar spectrum and in the continuous spectrum of a flame, their position being identical with that of Fraunhofer’s lines. Hence the path is opened for the determination of the chemical composition of the Sun and the fixed stars.
Letter to H.E. Roscoe (Nov 1859). In The Life and Experiences of Sir Henry Enfield Roscoe (1906), 71.
Science quotes on:  |  Absorption Line (2)  |  Biography (212)  |  Composition (41)  |  Discovery (496)  |  Flame (17)  |  Kirchoff_Gustav (3)  |  Solar Spectrum (3)  |  Spectrum (17)  |  Star (186)  |  Sun (144)

At the moment I am occupied by an investigation with Kirchoff which does not allow us to sleep. Kirchoff has made a totally unexpected discovery, inasmuch as he has found out the cause for the dark lines in the solar spectrum and can produce these lines artificially intensified both in the solar spectrum and in the continuous spectrum of a flame, their position being identical with that of Fraunhofer’s lines. Hence the path is opened for the determination of the chemical composition of the Sun and the fixed stars.
Letter to H.E. Roscoe (Nov 1859). In The Life and Experiences of Sir Henry Enfield Roscoe (1906), 81.
Science quotes on:  |  Absorption Line (2)  |  Biography (212)  |  Composition (41)  |  Discovery (496)  |  Flame (17)  |  Kirchoff_Gustav (3)  |  Solar Spectrum (3)  |  Spectrum (17)  |  Star (186)  |  Sun (144)

Be not afeard.
The isle is full of noises,
Sounds, and sweet airs, that give delight and hurt not.
Sometimes a thousand twangling instruments
Will hum about mine ears; and sometime voices
That if I then had waked after long sleep
Will make me sleep again; and then, in dreaming
The clouds methought would open and show riches
Ready to drop upon me, that, when I waked,
I cried to dream again.
The Tempest (1611), III, ii.
Science quotes on:  |  Cloud (33)  |  Delight (33)  |  Dream (55)  |  Ear (16)  |  Humming (3)  |  Hurt (6)  |  Instrument (56)  |  Isle (3)  |  Noise (18)  |  Riches (7)  |  Sound (38)  |  Thought (245)  |  Voice (23)  |  Waking (4)

Leon M. Lederman quote: During an intense period of lab work, the outside world vanishes and the obsession is total
Background: Michael Faraday in his laboratory at the Royal Institution. (source)
During an intense period of lab work, the outside world vanishes and the obsession is total. Sleep is when you can curl up on the accelerator floor for an hour.
In Leon Lederman and Dick Teresi, The God Particle: If the Universe is the Answer, What is the Question (1993), 14-15.
Science quotes on:  |  Accelerator (6)  |  Curl (3)  |  Experiment (473)  |  Floor (10)  |  Hour (25)  |  Intense (5)  |  Laboratory (100)  |  Obsession (8)  |  Total (17)  |  Vanishing (8)  |  World (404)

He who knows not, and knows not he knows not, he is a fool—shun him;
He who knows not, and knows he knows not, he is simple—teach him;
He who knows, and knows not he knows, he is asleep—wake him;
He who knows, and knows he knows, he is wise—follow him.
Anonymous
Hesiod, 'Works and Days,' 293-7. In William White, Notes and Queries (1904), Series 10, Vol. 1, 235, the correspondent H.A. Strong says that the origin of these lines is to be found in Hesiod [Greek, 8th Century B.C.], Works and Days, 293-7; that the passage was very celebrated in antiquity, and is quoted by Aristotle, Nic. Eth., i. 4; and that both Livy (xxii. 29) and Cicero (Pro Cluent., 31) refer to it. Another correspondent (J.H.K.) said it was stated to be an Arab proverb in Lady [Isabel] Burton, Life of [Captain] Sir Richard [F.] Burton (1893), Vol. 1, 548, footnote, with 'Men are four…' added to the beginning of the quote.
Science quotes on:  |  Follow (32)  |  Fool (48)  |  Knowledge (928)  |  Shun (3)  |  Simple (61)  |  Teaching (90)  |  Wisdom (119)

I came from Paris in the Spring of 1884, and was brought in intimate contact with him [Thomas Edison]. We experimented day and night, holidays not excepted. His existence was made up of alternate periods of work and sleep in the laboratory. He had no hobby, cared for no sport or amusement of any kind and lived in utter disregard of the most elementary rules of hygiene. There can be no doubt that, if he had not married later a woman of exceptional intelligence, who made it the one object of her life to preserve him, he would have died many years ago from consequences of sheer neglect. So great and uncontrollable was his passion for work.
As quoted in 'Tesla Says Edison Was an Empiricist', The New York Times (19 Oct 1931), 25.
Science quotes on:  |  Amusement (18)  |  Care (54)  |  Death (227)  |  Disregard (3)  |  Thomas Edison (52)  |  Experiment (473)  |  Hobby (3)  |  Holiday (3)  |  Hygiene (7)  |  Intelligence (103)  |  Laboratory (100)  |  Marriage (27)  |  Neglect (17)  |  Night (54)  |  Passion (34)  |  Preservation (19)  |  Sport (7)  |  Uncontrollable (4)  |  Woman (56)  |  Work (303)

I do not think there is any thrill that can go through the human heart like that felt by the inventor as he sees some creation of the brain unfolding to success... Such emotions make a man forget food, sleep, friends, love, everything.
Quoted by Cleveland Moffitt, 'A Talk With Tesla', Atlanta Constitution (7 Jun 1896)
Science quotes on:  |  Brain (138)  |  Creation (177)  |  Emotion (37)  |  Food (108)  |  Forget (16)  |  Friend (41)  |  Heart (76)  |  Inventor (38)  |  Success (152)  |  Thrill (10)

I would rather be ashes than dust!
I would rather that my spark should burn out in a brilliant blaze than it should be stifled by dry-rot.
I would rather be a superb meteor, every atom of me in magnificent glow, than a sleepy and permanent planet.
The proper function of man is to live, not to exist.
I shall not waste my days in trying to prolong them.
I shall use my time.
'Jack London Credo' quoted, without citing a source, in Irving Shepard (ed.), Jack London’s Tales of Adventure (1956), Introduction, vii. (Irving Shepard was London's literary executor.) This sentiment, expressed two months before his death, was quoted by journalist Ernest J. Hopkins in the San Francisco Bulletin (2 Dec 1916), Pt. 2, 1. No direct source in London's writings has been found, though he wrote “I would rather be ashes than dust&rdquo. as an inscription in an autograph book. Biographer Clarice Stasz cautions that although Hopkins had visited the ranch just weeks before London's death, the journalist's quote (as was not uncommon in his time) is not necessarily reliable, or may be his own invention. See this comment in 'Apocrypha' appended to Jack London, The Call Of The Wild (eBookEden.com).
Science quotes on:  |  Ash (10)  |  Atom (204)  |  Brilliant (9)  |  Burn (17)  |  Day (34)  |  Death (227)  |  Dust (30)  |  Existence (188)  |  Function (65)  |  Glow (5)  |  Life (642)  |  Magnificent (11)  |  Man (303)  |  Meteor (10)  |  Permanence (14)  |  Planet (123)  |  Prolong (8)  |  Spark (14)  |  Time (279)  |  Use (70)  |  Waste (42)

If sleeping and dreaming do not perform vital biological functions, then they must represent nature's most stupid blunder and most colossal waste of time.
Private Myths: Dreams and Dreaming (1995, 1997), 91.
Science quotes on:  |  Blunder (12)  |  Dream (55)  |  Time (279)  |  Waste (42)

It is a curious and painful fact that almost all the completely futile treatments that have been believed in during the long history of medical folly have been such as caused acute suffering to the patient. When anesthetics were discovered, pious people considered them an attempt to evade the will of God. It was pointed out, however, that when God extracted Adam's rib He put him into a deep sleep. This proved that anesthetics are all right for men; women, however, ought to suffer, because of the curse of Eve.
In An Outline of Intellectual Rubbish (1943), 13.
Science quotes on:  |  Acute (6)  |  Adam And Eve (3)  |  Anesthetic (2)  |  Curse (4)  |  Folly (19)  |  Futile (3)  |  Medicine (238)  |  Pain (67)  |  Patient (75)  |  Pious (2)  |  Rib (4)  |  Science And Religion (213)  |  Suffering (24)  |  Treatment (73)

It is not improbable that some of the presentations which come before the mind in sleep may even be causes of the actions cognate to each of them. For as when we are about to act [in waking hours], or are engaged in any course of action, or have already performed certain actions, we often find ourselves concerned with these actions, or performing them, in a vivid dream.
Aristotle
In Mortimer Jerome Adler, Charles Lincoln Van Doren (eds.) Great Treasury of Western Thought: A Compendium of Important Statements on Man and His Institutions by the Great Thinkers in Western History (1977), 352
Science quotes on:  |  Act (43)  |  Action (91)  |  Awake (5)  |  Cause (177)  |  Cognate (2)  |  Dream (55)  |  Improbable (6)  |  Mind (372)  |  Perform (12)  |  Presentation (10)  |  Psychology (91)  |  Vivid (12)

It took Freud 38 years to understand it. You have one night. The psych exam is in 12 hours. And your id wants to party. Your ego wants to conk out. But your superego knows you need to stay awake tonight to cram. Fortunately, you've got Vivarin [caffeine tablets]. It helps keep you awake and mentally alert… So all your brainpower can focus on understanding the brain. If Freud had used Vivarin, maybe he could have understood the brain faster, too.
Advertisement by SmithKline Beecham for Vivarin, student newspaper, Columbia Daily Spectator (16 Apr 1990), Vol. 114, No. 113, (16 April 1990), 4.
Science quotes on:  |  Alert (3)  |  Awake (5)  |  Brain (138)  |  Caffeine (2)  |  Cram (4)  |  Ego (9)  |  Examination (55)  |  Faster (7)  |  Focus (13)  |  Fortunately (6)  |  Sigmund Freud (49)  |  Mental (38)  |  Night (54)  |  Party (7)  |  Psychology (91)  |  Study (251)  |  Understanding (301)

It was about three o’clock at night when the final result of the calculation [which gave birth to quantum mechanics] lay before me ... At first I was deeply shaken ... I was so excited that I could not think of sleep. So I left the house ... and awaited the sunrise on top of a rock.
[That was “the night of Heligoland”.]
Quoted in Abraham Pais, Niels Bohr’s Times: in Physics, Philosophy, and Polity (1991), 275. Cited in Mauro Dardo, Nobel Laureates and Twentieth-Century Physics (2004), 179.
Science quotes on:  |  Calculation (57)  |  Excitement (28)  |  Night (54)  |  Quantum Mechanics (24)  |  Rock (77)  |  Sunrise (5)

Our revels are now ended. These our actors,
As I foretold you, were all spirits, and Are melted into air, into thin air;
And like the baseless fabric of this vision,
The cloud-capp'd towers, the gorgeous palaces,
The solemn temples, the great globe itself,
Yea, all which it inherit, shall dissolve.
And like this insubstantial pageant faded,
Leave not a rack behind. We are such stuff
As dreams are made on; and our little life
Is rounded with a sleep.
The Tempest (1611), IV, i.
Science quotes on:  |  Actor (4)  |  Air (116)  |  Cloud (33)  |  Dream (55)  |  Fabric (11)  |  Foretelling (4)  |  Life (642)  |  Melt (7)  |  Palace (4)  |  Rack (2)  |  Revel (2)  |  Spirit (75)  |  Tower (6)  |  Vision (35)

That ability to impart knowledge … what does it consist of? … a deep belief in the interest and importance of the thing taught, a concern about it amounting to a sort of passion. A man who knows a subject thoroughly, a man so soaked in it that he eats it, sleeps it and dreams it—this man can always teach it with success, no matter how little he knows of technical pedagogy. That is because there is enthusiasm in him, and because enthusiasm is almost as contagious as fear or the barber’s itch. An enthusiast is willing to go to any trouble to impart the glad news bubbling within him. He thinks that it is important and valuable for to know; given the slightest glow of interest in a pupil to start with, he will fan that glow to a flame. No hollow formalism cripples him and slows him down. He drags his best pupils along as fast as they can go, and he is so full of the thing that he never tires of expounding its elements to the dullest.
This passion, so unordered and yet so potent, explains the capacity for teaching that one frequently observes in scientific men of high attainments in their specialties—for example, Huxley, Ostwald, Karl Ludwig, Virchow, Billroth, Jowett, William G. Sumner, Halsted and Osler—men who knew nothing whatever about the so-called science of pedagogy, and would have derided its alleged principles if they had heard them stated.
In Prejudices: third series (1922), 241-2.
For a longer excerpt, see H.L. Mencken on Teaching, Enthusiasm and Pedagogy.
Science quotes on:  |  Ability (54)  |  Attainment (31)  |  Barber (3)  |  Belief (234)  |  Theodor Billroth (2)  |  Concern (43)  |  Contagion (4)  |  Derision (2)  |  Dream (55)  |  Enthusiasm (25)  |  Fear (73)  |  Flame (17)  |  Formalism (4)  |  Glow (5)  |  William Stewart Halsted (2)  |  Thomas Henry Huxley (84)  |  Imparting (2)  |  Importance (158)  |  Interest (119)  |  Itch (4)  |  Benjamin Jowett (2)  |  Knowledge (928)  |  Carl Friedrich Wilhelm Ludwig (3)  |  Men Of Science (94)  |  News (9)  |  Sir William Osler (32)  |  Ostwald_Carl (2)  |  Passion (34)  |  Pupil (13)  |  Specialty (8)  |  Subject (90)  |  Teaching (90)  |  Value (102)  |  Rudolf Virchow (37)

The manner of Demoivre's death has a certain interest for psychologists. Shortly before it, he declared that it was necessary for him to sleep some ten minutes or a quarter of an hour longer each day than the preceding one: the day after he had thus reached a total of something over twenty-three hours he slept up to the limit of twenty-four hours, and then died in his sleep.
History of Mathematics (3rd Ed., 1901), 394.
Science quotes on:  |  Anecdote (16)  |  Day (34)  |  Death (227)  |  Declare (10)  |  Hour (25)  |  Psychologist (10)

The night before Easter Sunday of that year (1920) I awoke, turned on the light, and jotted down a few notes on a tiny slip of thin paper. Then I fell asleep again. It occurred to me at six o’clock in the morning that during the night I had written down something most important, but I was unable to decipher the scrawl. The next night, at three o’clock, the idea returned. It was the design of an experiment to determine whether the hypothesis of chemical transmission that I had uttered seventeen years ago was correct. I got up immediately, went to the laboratory, and performed a simple experiment on a frog heart according to the nocturnal design. I have to describe this experiment briefly since its results became the foundation of the theory of chemical transmission of the nervous impulse. The hearts of two frogs were isolated, the first with its nerves, the second without. Both hearts were attached to Straub cannulas filled with a little Ringer solution. The vagus nerve of the first heart was stimulated for a few minutes. Then the Ringer solution that had been in the first heart during the stimulation of the vagus was transferred to the second heart. It slowed and its beats diminished just as if its vagus had been stimulated. Similarly, when the accelerator nerve was stimulated and the Ringer from this period transferred, the second heart speeded up and its beats increased. These results unequivocally proved that the nerves do not influence the heart directly but liberate from their terminals specific chemical substances which, in their turn, cause the well-known modifications of the function of the heart characteristic of the stimulation of its nerves.
'An Autobiographic Sketch', Perspectives in Biology and Medicine (1960), 4, 17.
Science quotes on:  |  Autobiography (54)  |  Experiment (473)  |  Frog (28)  |  Heart (76)  |  Idea (336)  |  Nerve (59)

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 (6)  |  Ash (10)  |  Atrophy (2)  |  Balance (30)  |  Blood (76)  |  Body (144)  |  Bone (46)  |  Brain (138)  |  Break (24)  |  Chemist (72)  |  Composition (41)  |  Condition (95)  |  Constant (24)  |  Constituent (12)  |  Determined (6)  |  Environment (109)  |  Exaggeration (6)  |  Excretion (4)  |  Failure (85)  |  Fire (87)  |  Foreign (9)  |  Gland (7)  |  Ideal (34)  |  Immediate (13)  |  Incidental (6)  |  Indiscriminate (2)  |  Infinite (62)  |  Innumerable (13)  |  Internal (9)  |  Keep (19)  |  Kidney (9)  |  Loaf (2)  |  Major (13)  |  Manufacturing (21)  |  Master (33)  |  Mouth (13)  |  Muscle (29)  |  Operation (77)  |  Performance (21)  |  Proper (19)  |  Removal (10)  |  Responsibility (30)  |  Reverse (9)  |  State (55)  |  Substance (58)  |  Survival (38)  |  Synthesis (34)  |  Task (48)  |  Tract (3)  |  Variety (40)

There are two kinds of sleep. The sleep of the just and the sleep of the just after.
Anonymous
Science quotes on:  |  Quip (72)

Thou hast nor youth nor age,
But as it were an after-dinner's sleep
Dreaming on both; for all thy blessed youth
Becomes as aged, and doth beg the alms
Of palsied eld.
Measure for Measure (1604), III, i.
Science quotes on:  |  Age (97)  |  Dream (55)  |  Youth (50)

What can you conceive more silly and extravagant than to suppose a man racking his brains, and studying night and day how to fly? ... wearying himself with climbing upon every ascent, ... bruising himself with continual falls, and at last breaking his neck? And all this, from an imagination that it would be glorious to have the eyes of people looking up at him, and mighty happy to eat, and drink, and sleep, at the top of the highest trees in the kingdom.
In A Serious Call to a Devout and Holy Life (1732), 168. This was written before Montgolfier brothers, pioneer balloonists, were born.
Science quotes on:  |  Aeronautics (10)  |  Ascent (5)  |  Brain (138)  |  Break (24)  |  Climb (11)  |  Day (34)  |  Drink (22)  |  Eating (19)  |  Extravagant (2)  |  Eye (110)  |  Fall (51)  |  Flight (38)  |  Glory (29)  |  Highest (11)  |  Imagination (179)  |  Look (44)  |  Neck (5)  |  Night (54)  |  People (90)  |  Silly (5)  |  Study (251)  |  Suppose (16)  |  Top (12)  |  Tree (113)

What would life be without art? Science prolongs life. To consist of what—eating, drinking, and sleeping? What is the good of living longer if it is only a matter of satisfying the requirements that sustain life? All this is nothing without the charm of art.
The Art of the Theatre (1924), 177.
Science quotes on:  |  Charm (13)  |  Drink (22)  |  Eat (22)  |  Life (642)  |  Prolong (8)  |  Requirement (41)  |  Science And Art (137)

When you inoculate children with polio vaccine, you don’t sleep well for two or three months.
As quoted without citation in Greer Williams, Virus Hunters (1959), 289. Webmaster found on the web that, allegedly, the quote is as told to reporters (11 Oct 1954) and reported for the Associated Press from Pittsburgh by Saul Pett—but Webmaster has not found such a print story for verification. The quote appears widely duplicated and circulated, but none found have a citation to a primary print source. Some specify weeks, others say months. Please contact Webmaster if you have a definitive reference to a newspaper article.
Science quotes on:  |  Child (132)  |  Inoculation (7)  |  Month (13)  |  Polio (4)  |  Vaccine (6)

You ask me how, with so much study, I manage to retene my health. ... Morpheous is my last companion ; without 8 or 9 hours of him yr correspondent is not worth one scavenger's peruke. My practices did at ye first hurt my stomach, but now I eat heartily enou' as y’ will see when I come down beside you. [On the value of sleep, and harm of eating poorly while intent on study.]
Letter to Dr. Law (15 Dec 1716) as quoted in Norman Lockyer, (ed.), Nature (25 May 1881), 24, 39. The source refers to it as an unpublished letter.
Science quotes on:  |  Companion (5)  |  Eat (22)  |  Food (108)  |  Health (115)  |  Heartily (3)  |  Hurt (6)  |  Scavenger (3)  |  Stomach (15)  |  Study (251)  |  Worth (46)


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.