In a battle all you need to make you fight is a little hot blood and the knowledge that it's more dangerous to lose than to win.

I don't know what to say about this book. The experience on which it is founded is so extraordinary, that an honest record of it should be preserved . . . But it would have driven me mad; and I am not sure that the author came out of it without a slight derangement.

Money is the counter that enables life to be lived socially; it is life as truly as sovereigns and banknotes are money.

Morality is not respectability.

You know well I couldn't bear to live with a low common man after you two; and it's wicked and cruel of you to insult me by pretending I could.

The philosopher is Nature's pilot. And there you have our difference: to be in hell is to drift: to be in heaven is to steer.

The reasonable man will adjust to the demands of his environment. The unreasonable man expects his environment to adjust to his own needs. Therefore, all progress depends upon the unreasonable man.