I wrote here last week about William James' discussion of what "philosophy" means in the early pages of his last book. I paraphrased his views somewhat, saying that "James believes that philosophy is only thinking about the world in an exceptionally rigorous way.” A friend wrote and questioned the validity of this paraphrase. In one of my direct quotes from James, after all, I have him referring to exceptional men’s “imagination,” not their “rigor.” My friend finds this significant because if we define philosophy by the “rigor” of one's thought, we suggest that any intelligent person, by dint of application, can make a contribution to philosophy. On the other hand (says further my inquisitive and analytical friend) to say that philosophers are distinguished by “imagination” implies that some faculty of which some people have far more than others is required. So which is it: are philosophers a specialized caste, naturally as well...