This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
...ty, one’s conviction of fundamental efficacy and worthiness. It reflects the certainty that, in essence and in principle, one is right for reality. Self-esteem is a metaphysical estimate.
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It is this psychological state that traditional morality makes impossible, to the extent that a man accepts it.

Neither mysticism nor the creed of self-sacrifice is compa
tible with mental health or self-esteem. These doctrines are destructive existentially and psychologically.

(1) The maintenance of his life and the achievement of self-esteem requi...
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