The Thomist: A Speculative Quarterly Review

BOOK REVIEWS 531 topic which makes these weaknesses stand out. They detract from the beauty of the work as a whole. Nonetheless, the work is an opus magnum meriting serious scholarly attention and applause. PETER A. REDPATH St. Johns' University Staten Island, New York Scepticism and Reasonable Doubt: The British Naturalist Tradition in Wilkins, Hume, Reid, and Newman. By M. JAMIE FERREIRA. Oxford : Clarendon Press, 1986. Pp. xii+ 255. Professor M. Jamie Ferreira has written a major contribution to our knowledge and understanding of scepticism within British intellectual life from the late seventeenth century to the late nineteenth. Her cast of characters is at first sight an unusual, even an eclectic one: John Wilkins, an Anglican bishop and founder of the Royal Society; David Hume, himself often regarded as the chief of sceptics; Thomas Reid, the Scottish philosopher of common sense; and John Henry Newman, the most famous Viotorian convert to Roman Catholicism. In Ferreira's analysis what holds this group together is their varied attempts to re· fute scepticism through an appeal " to ' the natural '-to how we are constituted, to what we, as human beings, are and do in the arena of believing " (p. vii). In other words, the refutation of intellectually derived scepticism lies in an examination of practically lived human ex· perience. Ferreira seeks to describe three distinct modes of naturalism. The first is sceptical naturalism such as found in the clearly sceptical pass· ages of Hume. The other forms of naturalism constitute replies to this sceptical position. These anti-sceptical positions are reasonable doubt scepticism and justifying naturalism. Advocates of the former contend there is no reasonable basis for doubt about fundamental beliefs of human nature. They contend that these fundamental lieliefs are more basic than other beliefs rthart are subject to justification. They are indeed the basis of our juslf:ification of other matters. For persons of ithis outlook, rationality and justification are mallters of practice. By contrast justifying naturalism does seek to provide some kind of justification that links what is natural with what can be justified. In effect, justifying naturalism rejects the argument that only one mode of justification can be regarded as legitimate. Reasonable doubt naturalism and justifying naturalism often closely approach each other, but the latter may reject scepticism on grounds other than those of practice. 53~ BOOK REVIEWS Fundamental to Ferreira's argument is her interpretation of the position of John Locke in the anti-sceptical tradition. In contrast to Henry Van Leeuwen, she asserts that rather than standing as the culmination of an earlier liberal Anglican tradition associated with John Wilkins, Locke actually departed from that anti-sceptical position which had based itself largely on the concept of moral certainty. Locke based his rejection of scepticism on a distinction between kinds of certainty rather than upon human nature itself. Whereas Wilkins and others had seen a close and sometimes identical relationship between the highest probability and certainty, Locke distinguished ,the two. For him, cel'tainty had to achieve more than probability. Locke distinguished kinds of evidence from degrees of evidence. He also proposed categories of probability and demonstrated certainty hut no category of proof. This issue is crucial for Ferreira's interpretation of Hume. She contends that Hume understood this distinction in Locke and that he looked to the earlier anti-sceptical tradition. She argues that Hume thought it possible to offer a response to his own sceptical position that actually went beyond simply unavoidably accepting certain beliefs. Hume introduced a category of proof between Locke's categories of certainty and probability. According to Ferreira, he based this category on the previous seventeenth-century distinction between reasonable and unreasonable doubt. Ferreira does not claim a single unified interpretation of Hume, but urges the presence of tension in his thought that allows for the presence at least some of the time of a naturalist approach to scepticism. Thomas Reid was regarded in his day and during most of the nineteenth century as the major critic of Hume. However, Ferreira examines that critique largely in terms of shared concerns. Reid sought to distinguish degrees of certainty in both demonstrative and probabilistic reasoning. His key metaphor was found in the suggestion...