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Like other animals, we experience, hunger, pain, and similar sensations. Ultimately, however, we retain the capacity of choice in the face of these physical experiences—experiences which (as we have noted) are at best highly fallible guides to our objective needs. For instance, humans can sometimes choose foods known to be nutritious, rather than those that offer immediate physical gratification. Similarly, an athlete can choose to undergo the physical discomforts of a grueling training plan because she expects, based on scientific research, that it will optimize her performance.  |
