This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
...e Ethics of Emergencies

by Ayn Rand

The psychological results of altruism may be observed in the fact that a great many people approach the subject of ethics b
y asking such questions as: “Should one risk one’s life to help a man who is: a) drowning, b) trapped in a fire, c) stepping in front of a speeding truck, d) hanging by his fingernails over an abyss?”

Consider the implications of that approach. If a man accepts the ethics of altruism, he suffers the following consequences (in proportion to the degree of his acceptan...
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