Henry David Thoreau

Experience is in the fingers and head. The heart is inexperienced.

How could youths better learn to live than by at once trying the experiment of living?

Explore thyself. Herein are demanded the eye and the nerve.

The eye may see for the hand, but not for the mind.

The eye is the jewel of the body.

My eye is educated to discover anything on the ground, as chestnuts, etc. It is probably wholesomer to look at the ground much than at the heavens.

Enemies publish themselves. They declare war. The friend never declares his love.

I have lived some thirty years on this planet, and I have yet to hear the first syllable of valuable or even earnest advice from my seniors.

At the same time that we are earnest to explore and learn all things, we require that all things be mysterious and unexplorable, that land and sea be infinitely wild, unsurveyed and unfathomed by us because unfathomable.

Almost any man knows how to earn money, but not one in a million knows how to spend it.