We have to be despised by somebody whom we regard as above us, or we are not happy; we have to have somebody to worship and envy,or we cannot be content. In America we manifest this in all the ancient and customary ways. In public we scoff at titles and hereditary privilege, but privately we hanker after them, and when we get a chance we buy them for cash and a daughter.

Man is the Reasoning Animal. Such is the claim. I think it is open to dispute. Indeed, my experiments have proven to me that he is the Unreasoning Animal... In truth, man is incurably foolish. Simple things which the other animals easily learn, he is incapable of learning. Among my experiments was this. In an hour I taught a cat and a dog to be friends. I put them in a cage. In another hour I taught them to be friends with a rabbit. In the course of two days I was able to add a fox, a goose, a squirrel and some doves. Finally a monkey. They lived together in peace; even affectionately.

I can live for two months on a good compliment.

I have stopped smoking now and then, for a few months at a time, but it was not on principle, it was only to show off; it was to pulverize those critics who said I was a slave to my habits and couldn't break my bonds.

What a wee little part of a person's life are his acts and his words! His real life is led in his head, and is known to none but himself. All day long, the mill of his brain is grinding, and his thoughts, not those of other things, are his history. These are his life, and they are not written. Everyday would make a whole book of 80,000 words -- 365 books a year. Biographies are but the clothes and buttons of the man -- the biography of the man himself cannot be written.

Optimist: Person who travels on nothing from nowhere to happiness.

There ain't nothing more to write about and I'm rotten glad of it, because if I'd know'd what trouble it was to make a book, I wouldn't a tackled it.