Do not entertain doubts if they are not agreeable to you.

It is remarkable how closely the history of the apple tree is connected with that of man.

Be not anxious to avoid poverty. In this way the wealth of the universe may be securely invested.

I have learned that the swiftest traveller is he that goes afoot.

I love to see that Nature is so rife with life that myriads can be afforded to be sacrificed and suffered to prey on one another; that tender organizations can be so serenely squashed out of existence like pulp, - tadpoles which herons gobble up, and tortoises and toads run over in the road; and that sometimes it has rained flesh and blood! With the liability to accident, we must see how little account is to be made of it.

White Pond and Walden are great crystals on the surface of the earth, Lakes of Light.... They are too pure to have a market value;they contain no muck. How much more beautiful than our lives, how much more transparent than our characters are they! We never learned meanness of them.

The lakes are something which you are unprepared for; they lie up so high, exposed to the light, and the forest is diminished to a fine fringe on their edges, with here and there a blue mountain, like amethyst jewels set around some jewel of the first water, - so anterior, so superior, to all the changes that are to take place on their shores, even now civil and refined, and fair as they can ever be.