“A mind stretched by a new ideanever shrinks back to its original proportions. ~”

“To reach a port we must sail, sometimes with the wind, and sometimes against it. But we must not drift or lie at anchor.”

“Every calling is great when greatly pursued.”

“I confess that altruistic and cynically selfish talk seem to me about equally unreal. With all humility I think 'whatsoever thy hand findeth to do do it with thy might ' infinitely more important...”

“You commit a sin of omission if you do not utilize all the power that is within you. All men have claims on man and to the man with special talents this is a very special claim. It is required th...”

“An older author is constantly rediscovering himself in the more or less fossilized productions of his earlier years.”

“I am glad I will not be young in a future without wilderness.”

“We need the tonic of wildness...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 indefinitely wi...”

“Something will have gone out of us as a people if we ever let the remaining wilderness be destroyed ... We simply need that wild country available to us, even if we never do more than drive to its ...”