Doubt is to certainty as neurosis is to psychosis. The neurotic is in doubt and has fears about persons and things; the psychotic has convictions and makes claims about them. In short, the neurotic has problems, the psychotic has solutions.

In the United States today, there is a pervasive tendency to treat children as adults, and adults as children. The options of children are thus steadily expanded, while those of adults are progressively constricted. The result is unruly children and childish adults.

Adulthood is the ever-shrinking period between childhood and old age. It is the apparent aim of modern industrial societies to reduce this period to a minimum.

Only idiots and infants need things. The language of needs is the native tongue of socialists, therapists, and paternalists of all sorts and is addressed to needy dependents. The language of wants is spoken by self-respecting adults and is addressed to other self-respecting adults.

The battle for the world is the battle for definitions.

Every act of conscious learning requires the willingness to suffer an injury to one's self-esteem. That is why young children, before they are aware of their own self-importance, learn so easily.

Narcissist: psychoanalytic term for the person who loves himself more than his analyst; considered to be the manifestation of a dire mental disease whose successful treatment depends on the patient learning to love the analyst more and himself less.