Political Science as Psychology

“Suppose,” wrote William James in A Pluralistic Universe, “that a philosopher believes in what is called free-will. That a common man alongside of him should also share that belief, possessing it by a sort of inborn intuition, does not endear the man to the philosopher at all—he may even be ashamed to be associated with such a man. What interests the philosopher is the particular premises on which the free-will he believes in is established, the sense in which it is taken, the objections it eludes, the difficulties it takes account of, in short the whole form and temper and manner and technical apparatus that goes with the belief in question. A philosopher across the way who should use the same technical apparatus, making the same distinctions but drawing opposite conclusions and denying free-will entirely, would fascinate the first philosopher far more than the naif co-believer. Their common technical interests would unite them more than their opposite conclusions separate them. Each would feel an essential consanguinity in the other, would think of him, write at him, care for his good opinion. The simple-minded believer in free-will would be disregarded by either. Neither as ally nor as opponent would his vote be counted.”