This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
...e is not entitled to any desire or to any “interest” without knowledge of what is required to make its fulfillment possible.

(d) Effort. Whoever gets the job, has earned it (as
suming that the employer’s choice is rational). This benefit is due to his own merit — not to the “sacrifice” of the other man who never had any vested right to that job. The failure to give to a man what had never belonged to him can hardly be described as “sacrificing his interests.”

All of the above discussion applies only to the relationships among rationa...
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