"Thus, races arose from an original coding which God pulled out as needed for adaptation to the environment."

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To wade in marshes and sea margins is the destiny of certain bird, and they are so accurately made for this that they are imprisoned in those places. Each animal out of its habitat would starve. To the physician, each man, each woman, is an amplification of one organ. A soldier, a locksmith, a bank-clerk, and a dancer could not exchange functions. And thus we are victims of adaptation.

— Ralph Waldo Emerson