Never tell the truth to people who are not worthy of it.

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.

There isn't any way to libel the human race.

There is in life only one moment and in eternity only one. It is so brief that it is represented by the fleeting of a luminous mote through the thin ray of sunlight - and it is visible but a fraction of a second. The moments that preceded it have been lived, are forgotten and are without value; the moments that have not been lived have no existence and will have no value except in the moment that each shall be lived. While you are asleep you are dead; and whether you stay dead an hour or a billion years the time to you is the same.

Humor is the good natured side of a truth.

It is not what a man knows, but what he thinks of in time.

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.