"I went to the woods because I wished to live deliberately, to front only the essential facts of life, and see if I could not learn what it had to teach, and not, when I came to die, discover that I had not lived."
"When we are unhurried and wise, we perceive that only great and worthy things have any permanent and absolute existence, that petty fears and petty pleasures are but the shadow of the reality."
"The cost of a thing is the amount of what I will call life which is required to be exchanged for it, immediately or in the long run."
"Things do not change; we change."
"How many a man has dated a new era in his life from the reading of a book."
"Not till we are lost, in other words not till we have lost the world, do we begin to find ourselves, and realize where we are and the infinite extent of our relations."