You must live in the present, launch yourself on every wave, find your eternity in each moment.
Henry David ThoreauIt would surpass the powers of a well man nowadays to take up his bed and walk, and I should certainly advise a sick one to lay down his bed and run.
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