Reason. Purpose. Self-esteem.
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• Reason, as his only tool of knowledge
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• Purpose, as his choice of the happiness which that tool must proceed to achieve
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• Self-esteem, as his inviolate certainty that his mind is competent to think and his person is worthy of happiness, which means: is worthy of living.

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By a feeling he has not learned to identify, but has derived from his first awareness of existence, from his discovery that he has to make choices, man knows that his desperate need of self-esteem is a matter of life or death. As a being of volitional consciousness, he knows that he must know his own value in order to maintain his own life. He knows that he has to be right; to be wrong in action means danger to his life; to be wrong in person, to be evil, means to be unfit for existence.

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Every act of man’s life has to be willed; the mere act of obtaining or eating his food implies that the person he preserves is worthy of being preserved; every pleasure he seeks to enjoy implies that the person who seeks it is worthy of finding enjoyment. He has no choice about his need of self-esteem, his only choice is the standard by which to gauge it. And he makes his fatal error when he switches this gauge protecting his life into the service of his own destruction, when he chooses a standard contradicting existence and sets his self-esteem against reality.