This is a quote from the book "The Virtue Of Selfishness" by Ayn Rand
...nal, yet most philosophers have now decided to declare that reason has failed, that ethics is outside the power of reason, that no rational ethics can ever be defined, and that in the field of e
thics — in the choice of his values, of his actions, of his pursuits, of his life’s goals — man must be guided by something other than reason. By what? Faith — instinct — intuition —
revelation — feeling — taste — urge — wish — whim. Today, as in the past, most philosophers agree that the ultimate standard of ethics is whim (they call it “arbitrary postulate” ...
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