“Philosophy”—love of wisdom—is a word first used by Heraclitus. “Sophia” as listed in the dictionary means “perfect scientific knowledge, wisdom,” but a “sophist” is “a quibbler, a cheat.” And Plato made a sharp distinction between sophistes, philosophos, and the sophos, the sophistes being a person who, claiming that he possesses wisdom, takes money for teaching it. The philosophos, by contrast, knowing [...]