My way of joking is to tell the truth

What is really important in Man is the part of him that we do not understand. Of much of it we are not even conscious, just as we are not normally conscious of keeping up our circulation by our heart-pump, though if we neglect it we die.

I have never admitted the right of an elderly author to alter the work of a young author, even when the young author happens to be his former self.

Unless the law of marriage were first made human, it could never become divine.

I have prophesied about the faith of Muhammad that it would be acceptable to the Europe of tomorrow as it is beginning to be acceptable to the Europe of today. ... I believe that if a man like him were to assume the dictatorship of the modern world he would succeed in solving its problems in a way that would bring it the much-needed peace and happiness.

If you leave your art, the world will beat you back to it. The world has not an ambition worth sharing, or a prize worth handling.

I must remind you that our credulity is not to be measured by the truth of the things we believe. When men believed that the earthwas flat, they were not credulous: they were using their common sense, and, if asked to prove that the earth was flat, would have said simply, "Look at it." Those who refuse to believe that it is round are exercising a wholesome skepticism.