Lecture I

guided in our search for truth. Dogmatic philosophies have sought for tests for truth which might dispense us from appealing to the future. Some direct mark, by noting which we can be protected immediately and absolutely, now and forever, against all mistake⁠—such has been the darling dream of philosophic dogmatists. It is clear that the origin of the truth would be an admirable criterion of this sort, if only the various origins could be discriminated from one another from this point of view, and the history of dogmatic opinion shows that origin has always been a favorite test. Origin in immediate intuition; origin in pontifical authority; origin in supernatural revelation, as by vision, hearing, or unaccountable impression; origin in direct possession by a higher spirit, expressing itself in prophecy and warning; origin in automatic utterance generally⁠—these origins have been stock warrants for the truth of one opinion after another which we find represented in religious history. The medical materialists are therefore only so many belated dogmatists, neatly turning the tables on their predecessors by using the criterion of origin in a destructive instead of an accreditive