To play so as to be relaxed and refreshed for work is not to play, and no work is well and finely done unless it, too, is a form of play.

Inability to accept the mystic experience is more than an intellectual handicap.

The best way to convince someone is by making him realize that what you speak came from his own mind.

In known history, nobody has had such capacity for altering the universe than the people of the United States of America. And nobody has gone about it in such an aggressive way.

We live in a culture where it has been rubbed into us in every conceivable way that to die is a terrible thing. And that is a tremendous disease from which our culture in particular suffers.

Never pretend to a love which you do not actually feel, for love is not ours to command.

If we cling to belief in God, we cannot likewise have faith, since faith is not clinging but letting go.