Every failure teaches a man something, to wit, that he will probably fail again.

The trouble with Communism is the Communists, just as the trouble with Christianity is the Christians.

Wherever I sit is the head of the table.

The truth is that Christian theology, like every other theology, is not only opposed to the scientific spirit; it is also opposed to all other attempts at rational thinking.

What is too often forgotten is that nature obviously intends the botched to die, and that every interference with that benign process is full of dangers.

There is only one honest impulse at the bottom of Puritanism, and that is the impulse to punish the man with a superior capacity for happiness.

All [zoos] actually offer to the public in return for the taxes spent upon them is a form of idle and witless amusement, compared to which a visit to a penitentiary, or even to a State legislature in session, is informing, stimulating and ennobling.