All great enterprises are self-supporting.

When I hear music, I fear no danger. I am invulnerable.

Disobedience is the true foundation of liberty. The obedient must be slaves.

The culture of the hop ... so analagous to the culture and uses of the grape, may afford a theme for future poets.

The true and not despairing Friend will address his Friend in some such terms as these. "I never asked thy leave to let me love thee,--I have a right. I love thee not as something private and personal, which is your own, but as something universal and worthy of love, which I have found. O, how I think of you! You are purely good, --you are infinitely good. I can trust you forever. I did not think that humanity was so rich. Give me an opportunity to live.

Fresh curls spring from the baldest brow. There is nothing inorganic.

Asked whether or not he believed in an afterlife, Thoreau quipped, "One world at a time."