The true charm of pedestrianism does not lie in the walking, or in the scenery, but in the talking. The walking is good to time the movement of the tongue by, and to keep the blood and the brain stirred up and active; the scenery and the woodsy smells are good to bear in upon a man an unconscious and unobtrusive charm and solace to eye and soul and sense; but the supreme pleasure comes from the talk.

I will now claim - until dispossesed - that I was the first person in the world to apply the typewriter to literature. ... The early machine was full of caprices, full of defects- devilish ones. It had as many immoralities as the machine of today has virtues. After a year or two I found that it was degrading my character, so I thought I would give it to Howells. ... He took it home to Boston, and my morals began to improve, but his have never recovered.

I knew a man who grabbed a cat by the tail and learned forty percent more about cats than the man who didn't.

I conceive that the right way to write a story for boys is to write so that it will not only interest boys but strongly interest any man who has ever been a boy. That immensely enlarges the audience.

Man has imagined a heaven, and has left entirely out of it the supremest of all his delights...sexual intercourse!...His heaven is like himself: strange, interesting, astonishing, grotesque. I give you my word, it has not a single feature in it that he actually values.

You ought never to sass old people- unless they sass you first.

Man is the only Patriot. He sets himself apart in his own country, under his own flag, and sneers at the other nations, and keeps multitudinous uniformed assassins on hand at heavy expense to grab slices of other people's countries, and keep them from grabbing slices of his. And in the intervals between campaigns he washes the blood off his hands and works for the universal brotherhood of man - with his mouth.