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Man's unique reward, however, is that while animals survive by adjusting themselves to their background, man survives by adjusting his background to himself.

Ayn Rand (1963). “For the New Intellectual: The Philosophy of Ayn Rand (50th Anniversary Edition)”, p.12, Penguin
Man's unique reward, however, is that while animals survive by adjusting themselves to their background, man survives by adjusting his background to himself.