Man carries the world in his head, the whole astronomy and chemistry suspended in a thought. Because the history of nature is charactered in his brain, therefore he is the prophet and discoverer of her secrets. Every known fact in natural science was divined by the presentiment of somebody, before it was actually verified.
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 not always tricked in holiday attire, but the same scene which yesterday breathed perfume and glittered as for the frolic of the nymphs, is overspread with melancholy today. Nature always wears the colors of the spirit.
For Nature is love, and finds haunts for true love, Where nothing can hear or intrude; It hides from the eagle and joins with the dove, In beautiful green solitude.
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.
If we study Nature attentively in its great evolutions as in its minutest works, we cannot fail to recognize the possibility of enchantment - giving to that word its exact significance.
So Nature deals with us, and takes away Our playthings one by one, and by the hand Leads us to rest so gently, that we go, Scarce knowing if we wish to go or stay, Being too full of sleep to understand How far the unknown transcends the what we know.
But, for all that, they had a very pleasant walk. The trees were bare of leaves, and the river was bare of water-lilies; but the sky was not bare of its beautiful blue, and the water reflected it, and a delicious wind ran with the stream, touching the surface crisply.
Green in nature is one thing, green in literature another. Nature and letters seem to have a natural antipathy; bring them together and they tear each other to pieces.
The wheels and springs of man are all set to the hypothesis of the permanence of nature. We are not built like a ship to be tossed, but like a house to stand.
I will begin with what in my opinion is your lack of restraint. You are like a spectator in a theatre who expresses his enthusiasm so unrestrainedly that he prevents himself and others from hearing. That lack of restraint is particularly noticeable in the descriptions of nature with which you interrupt dialogues; when one reads them, these descriptions, one wishes they were more compact, shorter, say two or three lines.
MIND, n. A mysterious form of matter secreted by the brain. Its chief activity consists in the endeavour to ascertain its own nature, the futility of the attempt being due to the fact that it has nothing but itself to know itself with.
How many times it thundered before Franklin took the hint! How many apples fell on Newton's head before he took the hint! Nature is always hinting at us. It hints over and over again. And suddenly we take the hint.