This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
If a man makes an error in his choice of values, his emotional mechanism will not correct him: it has no will of its own. If a man’s values are such that he desires things which, in
fact and in reality, lead to his destruction, his emotional mechanism will not save him, but will, instead, urge him on toward destruction: he will have set it in reverse, against himself and ag ainst the facts of reality, against his own life. Man’s emotional mechanism is like an electronic computer: man has the power to program it, but no power to change its nature — so that if he...
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