Self-denial is not a virtue; it is only the effect of prudence on rascality.

Hegel was right when he said that we learn from history that men never learn anything from history.

Indifference is the essence of inhumanity.

You must not suppose, because I am a man of letters, that I never tried to earn an honest living.

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.

There are only two classes in good society in England: the equestrian classes and the neurotic classes.

As well consult a butcher on the value of vegetarianism as a doctor on the worth of vaccination.