VARIED TYPES
fingers. We speak of "liver" and "digestion" when we mean the failure of liver and the absence of digestion. And in the same manner we speak of the dangers of logic, when what we really mean is the danger of fallacy.
But the real point about the limitation of logic and the partial overthrow of logic by writers like Carlyle is deeper and somewhat different. The fault of the great mass of logicians is not that they bring out a false result, or, in other words, are not logicians at all. Their fault is that by an inevitable psychological habit they tend to forget that there are two parts of a logical process, the first the choosing of an assumption, and the second the arguing upon it, and humanity, if it devotes itself too persistently to the study of sound reasoning, has a certain tendency to lose the faculty of sound assumption. It is astonishing how constantly one may hear from rational and even rationalistic persons such a phrase as "He did not prove the very thing with which he started," or, "The whole of his case rested upon a pure assump-
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