Abstract

In lieu of an abstract, here is a brief excerpt of the content:What Does the Scientist of Man Observe? Janet Broughton In the introduction to the Treatise, Hume cautions the reader that the scientist of man cannot "go beyond experience" and "discover the ultimate original qualities of human nature."1 "[T]he only solid foundation we can give to this science," tie says, "must be laid on experience and observation" (Txvi). This methodological principle is a familiar Newtonian one; indeed Hume makes a point of saying it applies to "all the sciences" (T xviii), not just to the science of man. Although the principle is familiar, just what it enjoins is not clear. We are to renounce investigations that go "beyond experience," and we are not to seek "ultimate" qualities. But exactly which investigations and qualities are these? The question is a difficult one for Newton as well as for Hume. But Hume's invocation of the familiar methodological principle raises two additional questions, ones that need not especially trouble Newton. When the scientist of man goes about his task ofgathering "experience and observation," what sort ofthing is he to observe? And how is he to make his observations? My mainaimin this paperisto answerthose two questionsas they arise for the early stages ofHume's investigation ofhuman nature in the Treatise. I hope also to persuade the reader that these questions are more difficult, and more important, than they may at first seem, andthattheyare connected with evenbroader questions aboutthe sort ofproject Hume undertook in the Treatise. "Perceptions" Without explanation, Hume begins the Treatise proper by distinguishing between two kinds of"perceptions ofthe human mind" and drawsthe distinction accordingtohow the perceptions"maketheir way into our thought or consciousness"(T 1). Afew pageslater, he asks which of these "impressions and ideas are causes and which effects" and then announces that the "full examination ofthis question is the subject of the present treatise" (T 4). The scientist ofman, then, is to observe perceptions in our consciousness. Most commentators assume therefore that Hume takes himselfto be studying what Locke called ideas: states of awareness whose 'immediate objects' are dependent for their existence on the existence Volume XVIII Number 2 155 JANETBROUGHTON ofthe states ofawareness themselves, and can be theimmediate objects of awareness for one mind only. Many commentators make the additional assumptionthatforHume, thepropersphere ofhis scientific investigations is really just his own Lockean ideas. That is, the only form of experience the scientist of man may consult is immediate experience; the only appropriateform ofobservationhe may undertake is introspection. Kemp Smith disagrees. He claims thatin the openingstages ofthe Treatise, Hume takes up a point of view that is "naively realistic."2 Kemp Smith prefers this readingbecause he thinks it explains Hume's general tendency, in the early parts ofbook 1, to slide between talking about objects and talking about ideas; before part 4's "Of scepticism withregard tothe senses," Kemp Smith claims, Hume himselfoccupies the position ofthe "vulgar"(for example, T 192), rather than that ofthe "philosophers." Kemp Smith reminds us that in part 4, after a long account of the position of the vulgar, Hume says that its inherent instability leads philosophers to change their system, and distinguish, (as we shall do for the future) betwixt perceptions and objects. (T 211, emphasis added) Only at this point, Kemp Smith says, does Hume adopt the Lockean theory ofideas. I also oppose the standard view, but unlike Kemp Smith I do not see our central interpretative task here as that of deciding whether Hume began his investigation ofhuman nature as a "naive realist" or as a Lockean theorist. For one thing, when Kemp Smith calls Hume a naive realist, he means that Hume begins by assuming that the Lockean is right about this much: when we see, hear, remember, and so on, we are "immediately" or "directly" aware of something—albeit objects, not ideas. But I do not think that Hume's account of the early phases of his investigation requires us to impute that assumption to him. I also see the choice Kemp Smith offers us as limiting in another way. For it focuses our attention just upon the metaphysical status of the objects ofsense-perception. We might agree with Kemp Smith that on that score Hume does notbegin...