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b'As long as humans have existed, we\\u2019ve had to choose between our lower and higher desires \\u2014 between what we want in the moment, and what we want in the long-term. As long as humans have existed, we\\u2019ve had to exercise self-control.\\n\\nWhile exercising self-control has always been part of the human condition, our ideas about it have changed through the ages, as have the number of obstacles to doing so.\\n\\nMy guest charted the course of these changes in his book Temptation: Finding Self-Control in an Age of Excess, and he takes us on a tour of them today.'