Any man knows when he is justified, and all the wits in the world cannot enlighten him on that point. The murderer always knows that he is justly punished; but when a government takes the life of a man without the consent of his conscience, it is an audacious government, and is taking a step towards its own dissolution.
Henry David ThoreauI should say that the useful results of science had accumulated, but that there had been no accumulation of knowledge, strictly speaking, for posterity; for knowledge is to be acquired only by a corresponding experience. How can we know what we are told merely? Each man can interpret another's experience only by his own.
Henry David ThoreauProbe the universe in a myriad of points. ... He is a wise man who has taken many views; to whom stones and plants and animals and a myriad of objects have each suggesting something, contributed something.
Henry David ThoreauMen are in the main alike, but they were made several in order that they might be various. If a low use is to be served, one man will do nearly quite as well as another; if a high one, individual excellence is to be regarded.
Henry David Thoreau