Abstract

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Descartes’s Legacy: Minds and Meaning in Early Modern Philosophy by David B. Hausman, Alan HausmanDaniel E. FlageDavid B. Hausman and Alan Hausman. Descartes’s Legacy: Minds and Meaning in Early Modern Philosophy. Toronto: University of Toronto Press, 1997. Pp. xiv + 149. Paper, $19.95.David and Alan Hausman have written a fascinating study of Descartes, Berkeley, and Hume. It is an examination of what the Hausmans call the “information problem,” that is, “how an information-processing entity receives input from a source outside itself and processes it” (1), and how those philosophers attempted to solve the problem. It does not examine the writings of these philosophers in their historical context.At the heart of their work is an argument that Cartesian ideas are intentional. Noting the remark in the Comments on a Certain Broadsheet that all ideas—including ideas of color—are innate, they argue that innate ideas intend exemplars or archetypes, entities whose existence is eternal but in principle, even if not in fact, independent of God. Only such a position, they argue, can solve the semantic problem posed by the third Cartesian demon, namely, that “if our thoughts could mean something other than what we believe they mean, then no proof for the actual existence of anything, including God and the cogito, could give us results” (38). This implies that all ideas are meaningful, have objective reality, and represent genuine possibilities, a point that Descartes himself came to recognize only in the years following the publication of the Meditations (39). Further, it solves the problem posed by the ex nihilo principle: “If the ex nihilo principle as a constraint on efficient causality requires that the meaningfulness of ideas have an intentional structure such that a complex of such ideas necessitates which possibilities must be actualized in order for the ideas to be true; there are necessary connections between ideas and their intentions” (40). Contending that the ex nihilo principle is the basis for Cartesian rationality (41), they argue that their position disposes [End Page 465] of a significant element of the Cartesian circle: the meaningfulness of an idea is independent of the existence and goodness of God (42). Since ideas intend exemplars, it is possible to explain the notion of eminent containment of extension without contending that God is extended (43–46). With the introduction of ideas as intentional entities—not entities which inherently resemble their objects—the mind/body distinction becomes a logical outgrowth of the necessity of solving a new philosophical problem, viz., how to deal with the fact that intentional entities have an entirely different logical structure from physical entities.Descartes’s second demon concerns individuals (49). The Hausmans attempt to solve this problem by way of a discussion of the distinction between simple and complex ideas: “Complex ideas will get meaning as a function of the simple ideas they ‘contain’ ” (49). Simple ideas intend exemplars. Complex ideas are ideas of complex individuals. The Hausmans argue that Descartes deals with the problem of individuation on the basis of some version of a substratum theory of substance, a claim based in part on an analysis of the piece of wax argument (54–57). “[G]iven the causal principles of the Third Meditation, the only way we can account for our judgements about individual physical things is to posit the existence of a physical world” (57): the problem is a semantic problem resting on the necessity of the ex nihilo principle (58).Their first Cartesian demon is discussed in terms of the “inverted spectrum” problem, e.g., the possibility that cubes produce sphere ideas and vice versa, a possibility that results systematically in false judgments: there is a physical world, but it is systematically different from the way we believe it to be (58–61). Unlike the earlier demons, the first demon can be exorcised only if there is a good God, although behaviorally such a systematic deception would be indistinguishable from behavior based on ideas corresponding to a physical reality.In their last three chapters, the Hausmans focus on related issues in the philosophies of Berkeley and Hume. They argue that Berkeley’s account of reality blurs the distinction between idea...