Beware of long arguments and long beards.

Knowledge of what is possible is the beginning of happiness.

The existence of any evil anywhere at any time absolutely ruins a total optimism.

It takes a wonderful brain and exquisite senses to produce a few stupid ideas.

Never have I enjoyed youth so thoroughly as I have in my old age. In writing Dialogues in Limbo, The Last Puritan, and now all these descriptions of the friends of my youth and the young friends of my middle age, I have drunk the pleasure of life more pure, more joyful than it ever was when mingled with all the hidden anxieties and little annoyances of actual living. Nothing is inherently and invincibly young except spirit. And spirit can enter a human being perhaps better in the quiet of old age and dwell there more undisturbed than in the turmoil of adventure.

The effort of art is to keep what is interesting in existence, to recreate it in the eternal.

Man is as full of potential as he is of importance.