242 HISTORY OF PHILOSOPHY Thus Locke's mistake is not the simplistic one of bringing in a new type of perception --perception of the agreement of an idea with something which is not an idea. He attributes the certainty which is appropriate for a general verbal truth concerning archetypal ideas to a real truth concerning ectypal ideas. There is an additional difficulty in Locke's use of the distinction between adequate and inadequate ectypal ideas when he uses them in his theory of self knowledge. How can we be sure that these simple ectypal ideas are adequate? We have certainty concerning the adequacy of our archetypal ideas because we have a complete knowledge of the archetype which is itself an idea. However, we are not given a complete knowledge of the archetype of simple ectypal ideas. We are assured of the adequacy of simple ectypal ideas only by assuming the truth of the causal principle. This leads to a circular argument . We can be assured of the adequacy of the causal relation considered as a product of our own construction. If the idea of the causal relation is archetypal, then the idea of this relation is adequate. However, when the causal relation is used to assure us of the adequacy of our simple ectypal ideas, the causal relation is no longer restricted to the level of archetypal ideas. In order to insure the adequacy of our simple ideas, the causal relation must be a relation between our ectypal ideas and something which is not an idea, viz., the power which causes the sensation. Archetypal ideas of relations are adequate, but this is not an archetypal idea of a relation, and thus we have no way of judging its adequacy. The only way to determine the adequacy of the causal connection is to show the adequacy of our simple ectypal ideas, but the adequacy of these simple ectypal ideas is itself predicated on the adequacy of the idea of the causal relation. Thus, the whole argument for the adequacy of simple ectypal ideas is circular. Either the real and nominal essences of simple ideas are identical as claimed in Book Three, or the real and nominal essences of simple ideas are not identical, as claimed in Book Two. If the real and nominal essences of simple ideas are identical, then these simple ideas are archetypal and adequate but they afford us no knowledge about any extra-mental thing. If the real and nominal essences of simple ideas are not identical then simple ideas are ectypal, but we cannot be assured of their adequacy because their adequacy is dependent on the causal relation whose adequacy is not assured. Thus, Locke's epistemology does not support his claim for intuitive knowledge of his own existence, but the mistakes he does make are not nearly as simplistic as they are often claimed to be. DONALD W. GOTTERBARN University of Southern California THE DISTINGUISHABLE AND THE SEPARABLE; A NOTE ON HUME AND CAUSATION In this note, I shall be concemed with only one part of Hume's doctrine of causation, and my criticism of this feature of his position will leave much of the remainder untouched . This is not to say that my point is unimportant, for I shall challenge Hume's fight to claim that there cannot in any case be a direct impression of connection, force, or power. He attempted to establish this claim by argument, and I wish to show that there is a fatal flaw in that argument. NOTES AND DISCUSSIONS 243 In order that what follows shall not be misunderstood, two points must be noted. First, I would not claim that we have an impression of connection, force, or power in all cases in which we hold that events are related as cause and effect. There are many instances in which this is not true, and the number and even the varieties of these cases could be greatly expanded beyond the illustrations which Hume gave in the Treatise and the Enquiry Concerning the Human Understanding. I shall only argue that he did not offer adequate reasons for holding that there are no eases in which we can possibly have such...
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