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Home > Category Index for Science Quotations > Category Index T > Category: Thistle

Thistle Quotes (5 quotes)

By teaching us how to cultivate each ferment in its purity—in other words, by teaching us how to rear the individual organism apart from all others,—Pasteur has enabled us to avoid all these errors. And where this isolation of a particular organism has been duly effected it grows and multiplies indefinitely, but no change of it into another organism is ever observed. In Pasteur’s researches the Bacterium remained a Bacterium, the Vibrio a Vibrio, the Penicillium a Penicillium, and the Torula a Torula. Sow any of these in a state of purity in an appropriate liquid; you get it, and it alone, in the subsequent crop. In like manner, sow smallpox in the human body, your crop is smallpox. Sow there scarlatina, and your crop is scarlatina. Sow typhoid virus, your crop is typhoid—cholera, your crop is cholera. The disease bears as constant a relation to its contagium as the microscopic organisms just enumerated do to their germs, or indeed as a thistle does to its seed.
In 'Fermentation, and its Bearings on Surgery and Medicine', Essays on the Floating­Matter of the Air in Relation to Putrefaction and Infection (1881), 264.
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I have procured some of the mice mentioned in my former letters, a young one and a female with young, both of which I have preserved in brandy. From the colour, shape, size, and manner of nesting, I make no doubt but that the species is nondescript [not known to science]. They are much smaller and more slender than the mus domesticus medius of Ray; and have more of the squirrel or dormouse colour ... They never enter into houses; are carried into ricks and barns with the sheaves; abound in harvest, and build their nests amidst the straws of the corn above the ground, and sometimes in thistles.
[Part of his observations on the harvest mouse, which he was the first to describe as a new species.]
Letter XII (4 Nov 1767) in The Natural History of Selborne (1789, 1899), 31.
Science quotes on:  |  Barn (4)  |  Brandy (2)  |  Corn (10)  |  Doubt (121)  |  Ground (63)  |  Harvest (14)  |  House (36)  |  Mouse (24)  |  Nest (11)  |  Preserve (38)  |  John Ray (7)  |  Sheaf (2)  |  Species (181)  |  Squirrel (7)  |  Straw (5)

In the Choice of … Things, neglect not any, tho’ the most ordinary and trivial; the Commonest Peble or Flint, Cockle or Oyster-shell, Grass, Moss, Fern or Thistle, will be as useful, and as proper to be gathered and sent, as any the rarest production of the Country. Only take care to choose of each the fairest of its kind, and such as are perfect or whole.
In Brief Instructions for Making Observations in all Parts of the World (1696), 10.
Science quotes on:  |  Fern (4)  |  Flint (6)  |  Grass (30)  |  Moss (8)  |  Neglect (23)  |  Ordinary (44)  |  Oyster (7)  |  Pebble (17)  |  Shell (35)  |  Trivial (30)

Physicians get neither name nor fame by the pricking of wheals or the picking out thistles, or by laying of plaisters to the scratch of a pin; every old woman can do this. But if they would have a name and a fame, if they will have it quickly, they must do some great and desperate cures. Let them fetch one to life that was dead; let them recover one to his wits that was mad; let them make one that was born blind to see; or let them give ripe wits to a fool: these are notable cures, and he that can do thus, if he doth thus first, he shall have the name and fame he deserves; he may lie abed till noon.
In John Bunyan and Robert Philip (ed.), The Works of John Bunyan (1850), Vol. 1, 75.
Science quotes on:  |  Blindness (8)  |  Cure (88)  |  Death (270)  |  Fame (30)  |  Fool (70)  |  Life (917)  |  Madness (26)  |  Name (118)  |  Physician (232)  |  Plaster (4)  |  Pricking (2)  |  Vision (55)  |  Wit (27)  |  Woman (94)

The Pestilence can never breed the Small-Pox, nor the Small-Pox the Measles, nor they the Crystals or Chicken-Pox, any more than an Hen can breed a Duck, a Wolf a Sheep, or a Thistle Figs; and consequently, one Sort cannot be a Preservative against any other Sort.
In Ludvig Hektoen, 'Thomas Fuller 1654-1734: country physician and pioneer exponent of specificness in infection and immunity', Bulletin of the Society of Medical History of Chicago (Mar 1922), 2, 321. In the reprint of the paper alone, the quote is on page 3.
Science quotes on:  |  Breed (18)  |  Consequently (3)  |  Crystal (47)  |  Duck (3)  |  Hen (4)  |  Measles (3)  |  Pestilence (8)  |  Sheep (11)  |  Smallpox (12)  |  Sort (32)  |  Wolf (6)


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 Einstein • Isaac Newton • Lord Kelvin • Charles Darwin • Srinivasa Ramanujan • Carl Sagan • Florence Nightingale • Thomas Edison • Aristotle • Marie Curie • Benjamin Franklin • Winston Churchill • Galileo Galilei • Sigmund Freud • Robert Bunsen • Louis Pasteur • Theodore Roosevelt • Abraham Lincoln • Ronald Reagan • Leonardo DaVinci • Michio Kaku • Karl Popper • Johann Goethe • Robert Oppenheimer • Charles Kettering  ... (more people)

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Sophie Germain
Gertrude Elion
Ernest Rutherford
James Chadwick
Marcel Proust
William Harvey
Johann Goethe
John Keynes
Carl Gauss
Paul Feyerabend
- 90 -
Antoine Lavoisier
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Charles Babbage
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Euclid
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Robert Bunsen
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Andre Ampere
Winston Churchill
- 80 -
John Locke
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Bible
Thomas Huxley
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- 70 -
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- 60 -
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- 50 -
Stephen Hawking
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- 40 -
Pierre Fermat
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- 30 -
Andreas Vesalius
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- 20 -
Carl Sagan
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- 10 -
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