This is a quote from the book "The Virtue Of Selfishness" by Ayn Rand
... issues he deals with, a rational man accepts that struggle as to his interest — because he knows that freedom is to his interest. He knows that the struggle to achieve his values includes the
possibility of defeat. He knows also that there is no alternative and no automatic guarantee of success for man’s effort, neither in dealing with nature nor with other men. So he does not jud
ge his interests by any particular defeat nor by the range of any particular moment. He lives and judges long-range. And he assumes the full responsibility of knowing what conditions are necessa...
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