UNDERSTANDING, n. A cerebral secretion that enables one having it to know a house from a horse by the roof on the house. Its nature and laws have been exhaustively expounded by Locke, who rode a house, and Kant, who lived in a horse.
Nature avenges herself speedily on the hard pedantry that would chain her waves. She is no literalist. Every thing must be taken genially, and we must be at the top of our condition, to understand any thing rightly.
Men go forth to marvel at the height of mountains, and the huge waves of the sea, the broad flow of the rivers, the vastness of the ocean, the orbits of the stars, and yet they neglect to marvel at themselves. Variant: Men go abroad to admire the heights of mountains, the mighty billows of the sea, the broad tides of rivers, the compass of the ocean, and the circuits of the stars, and pass themselves by.
My scientific work is motivated by an irresistible longing to understand the secrets of nature and by no other feeling. My love for justice and striving to contribute towards the improvement of human conditions are quite independent from my scientific interests.
Huge knots of sea-weed hung upon the jagged and pointed stones, trembling in every breath of wind; and the green ivy clung mournfully round the dark and ruined battlements. Behind it rose the ancient castle, its towers roofless, and its massive walls crumbling away, but telling us proudly of its own might and strength, as when, seven hundred years ago, it rang with the clash of arms, or resounded with the noise of feasting and revelry.
The night crept on apace, the moon went down, the stars grew pale and dim, and morning, cold as they, slowly approached. Then, from behind a distant hill, the noble sun rose up, driving the mists in phantom shapes before it, and clearing the earth of their ghostly forms till darkness came again.
Reason is a supple nymph, and slippery as a fish by nature. She had as leave give her kiss to an absurdity any day, as to syllogistic truth. The absurdity may turn out truer.
Mathematics would certainly have not come into existence if one had known from the beginning that there was in nature no exactly straight line, no actual circle, no absolute magnitude.
When the last tree is cut, the last fish is caught, and the last river is polluted; when to breathe the air is sickening, you will realize, too late, that wealth is not in bank accounts and that you can't eat money.
Nature is neutral. Man has wrested from nature the power to make the world a desert or make the deserts bloom. There is no evil in the atom; only in men's souls.