This is a quote from the book "The Virtue Of Selfishness" by Ayn Rand
...thing as an “only chance” or a single opportunity, and that this is guaranteed precisely by the existence of competition. He does not regard any concrete, specific goal or value as irre- pla
ceable. He knows that only persons are irreplaceable — only those one loves.
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He knows also that there are no conflicts of interests among rational men even in the issue of love.
Like any other value, love is not a static quantity to be divided, but an unlimited response to be earned. The love for one friend is not a threat to the love for another, and neither is the lov...