I never found a companion that was so companionable as solitude.

It is not worth the while to go round the world to count the cats in Zanzibar. Yet do this even till you can do better, and you may perhaps find some "Symmes' Hole" by which to get at the inside at last.

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.

Even in civilized communities, the embryo man passes through the hunter stage of development.

Winter is the time for study, you know, and the colder it is the more studious we are.

If misery loves company, misery has company enough.

We are born as innocents. We are polluted by advice.