There is no reason to believe that the nature of the violent minorities is now greatly different from what it was in the past. What has changed is the will and ability of the majority to react.

Never have the young taken themselves so seriously, and the calamity is that they are listened to and deferred to by so many adults.

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.

The search for happiness is one of the chief sources of unhappiness.

Nature attains perfection, but man never does.

A heresy can spring only from a system that is in full vigor.

In running away from ourselves we either fall on our neighbor's shoulder or fly at his throat.