If a man is rich and strong anywhere, it must be on his native soil. Here I have been these forty years learning the language of these fields that I may the better express myself. If I should travel to the prairies, I should much less understand them, and my past life would serve me but ill to describe them. Many a weed here stands for more of life to me than the big trees of California would if I should go there. We need only travel enough to give our intellects an airing.
Henry David ThoreauIf we knew all the laws of Nature, we should need only fact, or the description of one actual phenomenon, to infer all the particular results at that point.
Henry David Thoreau