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Home > Category Index for Science Quotations > Category Index S > Category: Spectacles

Spectacles Quotes (5 quotes)

Envy is an eyesore engendered by looking at another’s success thru the spectacles of our own inferiority.
Aphorism in The Philistine (Apr 1905), 20, No. 5, 160.
Science quotes on:  |  Engender (3)  |  Envy (10)  |  Inferiority (7)  |  Success (202)

If the Humours of the Eye by old Age decay, so as by shrinking to make the Cornea and Coat of the Crystalline Humour grow flatter than before, the Light will not be refracted enough, and for want of a sufficient Refraction will not converge to the bottom of the Eye but to some place beyond it, and by consequence paint in the bottom of the Eye a confused Picture, and according to the Indistinctuess of this Picture the Object will appear confused. This is the reason of the decay of sight in old Men, and shews why their Sight is mended by Spectacles. For those Convex glasses supply the defect of plumpness in the Eye, and by increasing the Refraction make the rays converge sooner, so as to convene distinctly at the bottom of the Eye if the Glass have a due degree of convexity. And the contrary happens in short-sighted Men whose Eyes are too plump. For the Refraction being now too great, the Rays converge and convene in the Eyes before they come at the bottom; and therefore the Picture made in the bottom and the Vision caused thereby will not be distinct, unless the Object be brought so near the Eye as that the place where the converging Rays convene may be removed to the bottom, or that the plumpness of the Eye be taken off and the Refractions diminished by a Concave-glass of a due degree of Concavity, or lastly that by Age the Eye grow flatter till it come to a due Figure: For short-sighted Men see remote Objects best in Old Age, and therefore they are accounted to have the most lasting Eyes.
Opticks (1704), Book 1, Part 1, Axiom VII, 10-11.
Science quotes on:  |  Concave (2)  |  Convergence (3)  |  Convex (2)  |  Decay (31)  |  Eye (159)  |  Humour (101)  |  Lens (11)  |  Light (246)  |  Ray (32)  |  Refraction (7)  |  Short-Sighted (2)  |  Vision (55)

I… formerly had two pair of spectacles, which I shifted occasionally, as in travelling I sometimes read, and often wanted to regard the prospects. Finding this change troublesome, and not always sufficiently ready, I had the glasses cut, and half of each kind associated in the same circle. … By this means, as I wear my spectacles constantly, I have only to move my eyes up or down, as I want to see distinctly far or near, the proper glasses being always ready.
Letter (23 May 1785) to George Wheatley). Collected in William Temple Franklin (ed.), The Works of Dr. Benjamin Franklin (1809), Vol. 6, 168.
Science quotes on:  |  Change (291)  |  Far (77)  |  Glass (35)  |  Lens (11)  |  Near (2)  |  Optic (2)

Kant, discussing the various modes of perception by which the human mind apprehends nature, concluded that it is specially prone to see nature through mathematical spectacles. Just as a man wearing blue spectacles would see only a blue world, so Kant thought that, with our mental bias, we tend to see only a mathematical world.
In The Mysterious Universe (1930), 115.
Science quotes on:  |  Apprehension (9)  |  Bias (15)  |  Blue (30)  |  Comprehension (51)  |  Conclusion (120)  |  Discussion (37)  |  Human (445)  |  Immanuel Kant (43)  |  Mathematics (587)  |  Mental (57)  |  Mode (29)  |  Nature (1029)  |  Perception (53)  |  Prone (6)  |  Seeing (48)  |  World (667)

Putting on the spectacles of science in expectation of finding an answer to everything looked at signifies inner blindness.
The Voice of the Coyote (1961), xvi.
Science quotes on:  |  Answer (201)  |  Blindness (8)  |  Everything (120)  |  Expectation (46)  |  Find (248)  |  Science (1699)  |  Signify (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
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