Since the emergence of 18th century classical economics, economists have accustomed to taking "private man" as the human behavior paradigm.

从18世纪古典经济学产生以来，经济学家就形成了把“自私人”作为人类经济行为的范式。

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Since the emergence of 18century classical economics, economists have accustomed to taking "private man" as the human behavior paradigm.

从18世纪古典经济学产生以来，经济学家就形成了把“自私人”作为人类经济行为的范式。

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But since the iPad has been introduced, his behavior has mellowed in a way and he has gotten more accustomed to being near people.

但自从引进iPad之后，他的行为在某种程度上成熟了，习惯了附近的人类。

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