Those who lack the capacity to achieve much in an atmosphere of freedom will clamor for power.

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 and talents.

Self-esteem and self-contempt have specific odors; they can be smelled.

I hang onto my prejudices, they are the testicles of my mind.

Children, savages and true believers remember far less what they have seen than what they have heard.

Fair play is primarily not blaming others for anything that is wrong with us.

By all odds, earliest man, so naked to the elements and to deadly enemies, should have existed in a state of constant shock. We find him instead the only lighthearted being in a deadly serious universe.... He alone, with childish carelessness, tinkered and played, and exerted himself more in the pursuit of superfluities than of necessities. Yet the tinkering and playing, and the fascination with the nonessential, were a chief source of the inventiveness which enabled man to prevail over better-equipped and more-purposeful animals.