This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
...imal acts on its knowledge, with automatic safety and no power of choice: it cannot suspend its own consciousness — it cannot choose not to perceive — it cannot evade its own perceptions — 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...
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