This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
... it cannot ignore its own good, it cannot decide to choose the evil and act as its own destroyer.

Man has no automatic code of survival. He has no automatic course of action, no au
tomatic set of values. His senses do not tell him automatically what is good for him or evil, what will benefit his life or endanger it, what goals he should pursue and what means will achieve t hem, what values his life depends on, what course of action it requires. His own consciousness has to discover the answers to all these questions — but his consciousness will not function auto...
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