"As one who knows many things, the humanist loves the world precisely because of its manifold nature and the opposing forces in itdo not frighten him. Nothing is further from him than the desire to resolve such conflictsand this is precisely the mark of the humanist spirit: not to evaluate contrasts as hostility but to seek human unity, that superior unity, for all that appears irreconcilable."

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The child knows only that he engages in play because it is enjoyable. He isn't aware of his need to play--a need which has its source in the pressure of unsolved problems. Nor does he know that his pleasure in playing comes from a deep sense of well-being that is the direct result of feeling in control of things, in contrast to the rest of his life, which is managed by his parents or other adults.

— Bruno Bettelheim