“Life is short, but there is always time enough for courtesy.”

“Vast spaces of nature; the Atlantic Ocean, the South Sea; vast intervals of time, years, centuries, are of no account. This which I think and feel, underlay that former state of life and circumstances, as it does underlie my present, and will always circumstance, and what is called life, and what is called death.”

“Concentration is the secret of strength in politics, in war, in trade, in short in all management of human affairs”

“In the woods too, a man casts off his years, as the snake his slough, and at what period soever of life, is always a child. In the woods, is perpetual youth.”

“A friend is a person with whom I may be sincere. Before him I may think aloud. I am arrived at last in the presence of a man so real and equal, that I may drop even those undermost garments of dissimulation, courtesy, and second thought, which men never put off, and may deal with him with the simplicity and wholeness with which one chemical atom meets another.”

“When it is dark enough, you can see the stars.”

“We are never tired so long as we can see far enough.”