The scientist, by the very nature of his commitment, creates more and more questions, never fewer. Indeed the measure of our intellectual maturity, one philosopher suggests, is our capacity to feel less and less satisfied with our answers to better problems.

It is not that we have class prejudice, but only that we find comfort and ease in our own class. And normally there are plenty of people of our own class, or race, or religion to play, live, and eat with, and to marry.

Each person is an idiom unto himself, an apparent violation of the syntax of the species.

Prejudgments become prejudices only if they are not reversible when exposed to new knowledge.

Love-incomparably the greatest psychotherapeutic agent-is something that professional psychiatry cannot of itself create, focus, nor release.

The dog [in Pavlov's experiments] does not continue to salivate whenever it hears a bell unless sometimes at least an edible offering accompanies the bell. But there are innumerable instances in human life where a single association, never reinforced, results in the establishment of a life-long dynamic system. An experience associated only once with a bereavement, an accident, or a battle, may become the center of a permanent phobia or complex, not in the least dependent on a recurrence of the original shock.

Life is too short so we must generalize.