Hume on Liberty, Necessity and Verbal Disputes

113 HUME ON LIBERTY, NECESSITY AND VERBAL DISPUTES Although Hume's discussion "Of Liberty and Necessity" in Section VIII of the first Enquiry has become a paradigm of compatibilism with respect to the issue of free will and determinism, it is not without its perplexing features. For instance, it is far from clear how Hume's arguments and illustrations help to establish his claim that "The same motives always produce the same actions: The same events follow from the same causes." Nor is it obvious that Humean liberty is reconcilable with Humean causation or constant conjunction, or that the latter takes the sting out of determinism and makes the case for compatibilism more plausible. In this paper I want to examine a further, perhaps related, perplexing feature of Hume's discussion, namely, his contention that the dispute concerning liberty and necessity has been a merely verbal one. Although perhaps portions of the dispute may turn "merely upon words" as Hume contends, still it seems extreme to claim that the "whole controversy" is of this nature. I shall begin by examining the notion of a merely verbal dispute as it is discussed by Hume in other parts of his philosophy, and shall isolate three conditions for such a dispute. I shall then show why the dispute over liberty and necessity as presented in the Enquiry fails to meet these conditions. I want to suggest that there is a tension between Hume's psychological account of particular mistaken beliefs or natural illusions and his views about particular verbal disputes involving these beliefs. Even if this tension can be eased or eliminated, it will not make the dispute about liberty and necessity verbal. 114 Before we can hope to assess Hume's claim that the dispute about liberty and necessity is a merely verbal one, we must be clear on what hé understands by such a dispute. Fortunately, the notion is discussed in each of his four most important philosophical works — the Treatise, the two Enquiries and the Dialogues Concerning Natural Religion. Perhaps the most detailed discussion is found in the Appendix to the second Enquiry, where Hume examines an apparent disagreement discovered in a comparison of various natural languages over the question of whether particular personal qualities are virtues or rather talents (and the corresponding question of whether other qualities are vices or rather defects). In contending that the disagreement is merely verbal, Hume has two important things to say. First, he notes that "I do not find that in the English, or any other modern tongue, the boundaries are exactly fixed between virtues and talents, vices and defects, or that a precise definition can be given of the one as contradistinguished from the other." (E 313) Secondly, he states, "...it is no wonder that languages should not be very precise in marking the boundaries between virtues and talents, vices and defects; since there is so little distinction made in our internal estimation of them." (E 314) Hume goes on to point out that the sentiments which arise from the contemplation of qualities that are designated virtues are similar to those which arise from the contemplation of qualities which in some languages are designated talents. (E 316) 115 The preceding comments suggest an account of the nature of verbal disputes along the following lines. In a verbal dispute there is an underlying agreement about specific impressions, perceptions or experiences of objects. Thus, in the case of the dispute about whether specific qualities are talents or virtues, this would include the fact that the qualities elicit a similar feeling of approval for Hume whether they are designated in one way or the other. Moreover, Hume's comment about the lack of a clear distinction between "virtue" and "talent" implies that the terms express or refer to ideas that are compatible, that is, both of which can apply to a given object. Hence, there can be instances of qualities which fall under both designations. Given the underlying "factual" agreement between the parties to the dispute and given the compatibility of ideas, it would seem that for Hume in a verbal dispute there is no real disagreement between them and neither party is mistaken. Consequently...