What people really need and demand from life is not wealth, comfort, or esteem, but games worth playing

If someone does something we disapprove of, we regard him as bad if we believe we can deter him from persisting in his conduct, but we regard him as mad if we believe we cannot.

In the animal kingdom, the rule is, eat or be eaten; in the human kingdom, define or be defined.

Science can give us power over nature, but it cannot give us power over human nature.

Boredom is the feeling that everything is a waste of time; serenity, that nothing is.

No further evidence is needed to show that 'mental illness' is not the name of a biological condition whose nature awaits to be elucidated, but is the name of a concept whose purpose is to obscure the obvious.

A child becomes an adult when he realizes that he has a right not only to be right but also to be wrong.