This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
...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 sets the wrong programming, he will not be able to escape the fact that the most self-destructive desires will have, for him, the emotional intensity and urgency of lifesaving actions. He has, ...
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