Quote
"There is no odor so bad as that which arises from goodness tainted."
"Still grows the vivacious lilac a generation after the door and lintel and the sill are gone, unfolding its sweet-scented flowers each spring, to be plucked by the musing traveller; planted and tended once by childrens hands, in front-yard plots -- now standing by wallsides in retired pastures, and giving place to new-rising forests; -- the last of that stirp, sole survivor of that family. Little did the dusky children think that the puny slip with its two eyes only, which they stuck in the ground in the shadow of the house and daily watered, would root itself so, and outlive them, and house itself in the rear that shaded it, and grown mans garden and orchard, and tell their story faintly to the lone wanderer a half-century after they had grown up and died -- blossoming as fair, and smelling as sweet, as in that first spring. I mark its still tender, civil, cheerful lilac colors."

Walden is an 1854 book by American transcendentalist writer Henry David Thoreau. The text is a reflection upon the author's simple living in natural surroundings. The work is part personal declaration of independence, social experiment, voyage of spiritual discovery, satire, and—to some degree—a manual for self-reliance.
"There is no odor so bad as that which arises from goodness tainted."
"We do not ride on the railroad; it rides upon us."
"To the dark immensity of material Natures indifference we can oppose only the brief light, like a lamp in a cabin, of our consciousness; the invigorating benison of Walden is to make us feel that the contest is equal, and fair."
"These beans have results which are not harvested by me. Do they not grow for woodchucks partly?"
"Now only a dent in the earth marks the site of these dwellings, with buried cellar stones, and strawberries, raspberries, thimble-berries, hazel-bushes, and sumachs growing in the sunny sward there; some pitch pine or gnarled oak occupies what was the chimney nook, and a sweet-scented black birch, perhaps, waves where the door-stone was. Sometimes the well dent is visible, where once a spring oozed; now dry and tearless grass; or it was covered deep -- not to be discovered till some late day -- with a flat stone under the sod, when the last of the race departed. What a sorrowful act must that be -- the covering up of wells! coincident with the opening of wells of tears. These cellar dents, like deserted fox burrows, old holes, are all that is left where once were the stir and bustle of human life, and "fate, free will, foreknowledge absolute," in some form and dialect or other were by turns discussed. But all I can learn of their conclusions amounts to just this, that "Cato and Brister pulled wool"; which is about as edifying as the history of more famous schools of philosophy."
"I have learned that the swiftest traveller is he that goes afoot."
"In the life of the mass-order, the culture of the generality tends to conform to the demands of the average human being. Spirituality decays through being diffused among the masses when knowledge is impoverished in every possible way by rationalisation until it becomes accessible to the crude understanding of all."
"I say this to you because we Spaniards are a forgetful people, because we are used to living for the moment, because we do not look back, because we do not know how to see the chain of heroes, because we do not contemplate the sum of sacrifices."
"Sharon Tate was my best friend. Once, we were roommates. She introduced me to my husband. She was the godmother to my baby daughter who is named for her. In the six years time that I knew her, she never said an unkind word about anyone."
"Long time to see. (VS: Tapion)"
"Most mathematicians prove what they can, von Neumann proves what he wants." Once in a discussion about the rapid growth of mathematics in modern times, von Neumann was heard to remark that whereas thirty years ago a mathematician could grasp all of mathematics, that is impossible today. Someone asked him: "What percentage of all mathematics might a person aspire to understand today?" Von Neumann went into one of his five-second thinking trances, and said: "About 28 percent."
"Children must be free to think in all directions irrespective of the peculiar ideas of parents who often seal their childrens minds with preconceived prejudices and false concepts of past generations. Unless we are very careful, very careful indeed, and very conscientious, there is still great danger that our children may turn out to be the same kind of people we are."