This is implied in the assertion that a man shows certain behavior because he was “born that way.” To object to this is not to argue that behavior is… - B. F. Skinner

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This is implied in the assertion that a man shows certain behavior because he was “born that way.” To object to this is not to argue that behavior is never determined by hereditary factors. Behavior requires a behaving organism which is the product of a genetic process. Gross differences in the behavior of different species show that the genetic constitution, whether observed in the body structure of the individual or inferred from a genetic history, is important. But the doctrine of “being born that way” has little to do with demonstrated facts. It is usually an appeal to ignorance. “Heredity,” as the layman uses the term, is a fictional explanation of the behavior attributed to it.