This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
...e not to be questioned. And when one speaks of man’s right to exist for his own sake, for his own rational self-interest, most people assume automatically that this means his right to sacrific e others. Such an assumption is a confession of their own belief that to injure, enslave, rob or murder others is in man’s self-interest — which he must selflessly renounce. The idea that ma n’s self-interest can be served only by a non-sacrificial relationship with others has never occurred to those humanitarian apostles of unselfishness, who proclaim their desire to achieve the ...
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