This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
... or clairvoyant. It means that he does not live his life short-range and does not drift like a bum pushed by the spur of the moment. It means that he does not regard any moment as cut off from t he context of the rest of his life, and that he allows no conflicts or contradictions between his short- range and long-range interests. He does not become his own destroyer by pursuing a desire today which wipes out all his values tomorrow.

A rational man does not indulge in wistful longings for ends divorced from means. He does not hold a desire without knowing (or lear...
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