Mark Twain
(page 7)
An Englishman is a person who does things because they have been done before. An American is a person who does things because they haven't been done before.
Keep away from people who try to belittle your ambitions. Small people always do that, but the really great make you feel that you, too, can become great.
There are people who strictly deprive themselves of each and every eatable, drinkable, and smokable which has in any way acquired a shady reputation. They pay this price for health. And health is all they get for it. How strange it is. It is like paying out your whole fortune for a cow that has gone dry.
There is something fascinating about science. One gets such wholesale returns of conjecture out of such a trifling investment of fact.
I cannot call to mind a single instance where I have ever been irreverent, except toward the things which were sacred to other people.
Of all the animals, man is the only one that is cruel. He is the only one that inflicts pain for the pleasure of doing it.
When a person cannot deceive himself the chances are against his being able to deceive other people.