We cannot know the young child's personality by studying his systems of interest, for his attention is as yet too labile, his reactions impulsive, and interests unformed. From adolescence onward, however, the surest clue to personality is the hierarchy of interests, including the loves and loyalties of adult life.

If there is a purpose in life at all, there must be a purpose in suffering and in dying. But no man can tell another what this purpose is. Each must find out for himself, and must accept the responsibility that his answer prescribes. If he succeeds he will continue to grow in spite of all indignities.

Love received and love given comprise the best form of therapy.

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

Thwarted lives have the most character-conditioned hate

People who are aware of, and ashamed of, their prejudices are well on the road to eliminating them.

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.