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 wild, unsurveyed and unfathomed by us because unfathomable. We can never have enough of nature.

If one listens to the faintest but constant suggestions of his genius, which are certainly true, he sees not to what extremes, or even insanity, it may lead him; and yet that way, as he grows more resolute and faithful, his road lies.

In an ancient and dead language, any recognition of living nature attracts us. These are such sentences as were written while grass grew and water ran. It is no small recommendation when a book will stand the test of mere unobstructed sunshine and daylight.

What lies behind us and what lies ahead of us are tiny matters compared to what lives within us.

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

How many a poor immortal soul I have met well-nigh crushed and smothered under its load, creeping down the road of life, pushing before it [an oversized home].

Indeed, the best books have a use, like sticks and stones, which is above or beside their design, not anticipated in the preface,not concluded in the appendix. Even Virgil's poetry serves a very different use to me today from what it did to his contemporaries. It has often an acquired and accidental value merely, proving that man is still man in the world.