On Intuition and Discursive Reasoning in Aristotle by Victor Kal (review)

BOOK REVIEWS 181 On Intuition and Discursive Reasoning in Aristotle. By VICTOR KAL. Philosophia Antiqua, no. 46. Leiden: E. J. Brill, 1988. Pp. 196. 74 guilders (approx. $37.00). This is a study of Aristotle's logic and psychology of mind which explores a connection between the two. This connection is used, on the one hand, to corroborate the results of the study of the logic and, on the other hand, to elucidate the most controverted text of Aristotle's psychology, De Anima, 3. 5, with its discussion of active mind. Part 1 argues for the dependence of all discursive thinking on non-discursive sources of knowldge, viz., experience and intuition. Part 2, a bridge section, distinguishes logic, epistemology, and psychology: logic studies the forms of reasoning; epistemology studies the connection of reasoning to reality, as Aristotle does notably in Posterior Analytics, 2. 19; and psychology "shows how ... cognitive processes ... take place from the point of view of physics and First Philosophy " (p. 63) . Part 3 investigates the psychology of cognition found in the De Anima and elsewhere and finds in it confirmation of the results of part l. In addition , Kal here offers a new interpretation of what Aristotle means by active mind. In part 1 Kal presents a careful textual study of Aristotle's view of definition, induction, and the syllogism, both dialectical and demonstra· tive, and argues that, as discursve methods, all of them presuppose knowledge already acquired, i.e., first principles that must be known. This raises the question of the origin of such principles, a question which Aristotle addresses and answers in Posterior Analytics, 2. 19. A common interpretation of this difficult chapter holds that first principles are grasped through induction. The text which seems to support this view is found in lines l00b3-5: " Thus it is clear that we necessarily know the first principles by induction; for sensation also produces the universal in this way." Kal argues that this text, when understood according to the indications of its context, does not make induction the source of first principles. Rather, Aristotle's position is that sensation, which gives us the universal, is based on experience (lOOall) and, therefore, an induction, which is also based on experience, also gives the universal (p. 51). Furthermore, Kal finds a much simpler argu· ment against the position that induction is the source of our knowledge of first principles in the beginning of Posterior Analytics, 2. 19, where "Aristotle rejects knowledge based on previous knowledge, and thus induction, as a solution to the problem of the knowledge of the first principles" (p. 52). Induction, then, remains one of the discursive methods, and, as such, depends on a kind of knowledge that is acquired 182 BOOK REVIEWS without being based on previously acquired knowledge. Kai insists that, if knowledge is possible, there must he a non-discursive origin for first principles; and, in his investigation of Aristotle's position, he finds only two such origins-experience and intuition. Sense experience brings the universal to light, although it does not know the universal as such, hut only as an accidental object of sensation. It is intellective intuition (nous) which knows the universal as such (p. 48). Having argued for the primacy of intuition (nous) in part l, Kai turns to the psychology of cognition in part 3. Is the primacy of nous corroborated by Aristotle's understanding of sensation and thinking? Kal finds that it is. From the point of view of logic and epistemology, the non-discursive origin of first principles is an immediate knowledge, a knowledge that does not require a middle term. As Kal puts it, the immediacy of intuition " lies . . . in the fact that contact is made with the object of knowledge simply, without active intervention of the knower" (p. 59). In receiving the object of knowledge the knower is completely receptive. Similarly, Kal argues, sensation and thinking in the sense of intuitive thought are also completely receptive, and this receptivity confirms the results of part l; cognition when viewed both from the point of view of logic-and epistemology, and from the point of view of psychology reveals the same essential receptivity. Just as Aristotle argues...