We have to adjust ourselves, and every radical adjustment is a crisis in self-esteem: we undergo a test, we have to prove ourselves.

Glory is largely a theatrical concept. There is no striving for glory without a vivid awareness of an audience.

The Paleolithic hunters who painted the unsurpassed animal murals on the ceiling of the cave at Altamira had only rudimentary tools. Art is older than production for use, and play older than work. Man was shaped less by what he had to do than by what he did in playful moments. It is the child in man that is the source of his uniqueness and creativeness, and the playground is the optimal milieu for the unfolding of his capacities.

It is the pull of opposite poles that stretches souls. And only stretched souls make music.

We can be absolutely certain only about things we do not understand.

We do not really feel grateful toward those who make our dreams come true; they ruin our dreams.

The creative mind is the playful mind. Philosophy is the play and dance of ideas.