The knowledge of an unlearned man is living and luxuriant like a forest, but covered with mosses and lichens and for the most part inaccessible and going to waste; the knowledge of the man of science is like timber collected in yards for public works, which still supports a green sprout here and there, but even this is liable to dry rot.
Henry David ThoreauThe monster is never just there where we think he is. What is truly monstrous is our cowardice and sloth.
Henry David ThoreauOne piece of good sense would be more memorable than a monument as high as the moon.
Henry David Thoreau