...and Plato is their ultimate master, though he contributes his realism to their opponents. The tough-minded derive from Aristotle, St. Augustine, and, of course, Calvin; find themselves close kin to Hobbes and Locke, to the motivists, and, later, to Reid and Dugald Stewart; and are the classics—the orthodox. In the large, the thought of American divines and moralists from Edwards to Beecher mov...