Effort is only effort when it begins to hurt.

An idea is a putting truth in check-mate.

Being an artist means ceasing to take seriously that very serious person we are when we are not an artist.

Excellence means when a man or woman asks of himself more than others do.

When you are fed up with the troublesome present, you take your gun, whistle for your dog, go out to the mountain, and, without further ado, give yourself the pleasure during a few hours or a few days of being "Paleolithic."

Man adapts himself to everything, to the best and the worst.

Life is a series of collisions with the future.