Abstract
A blatant contradiction seems to characterize the first part of DA II 12: 424a24-25 entails that possession of the power to ‘receive forms without the matter’ is sufficient for being a sense organ, while the ‘wax simile’ supposedly preceding it (424a19-23) attributes the same power to both senses and wax blocks. To solve the contradiction, I contend that Aristotle does not in fact endorse the described ‘wax simile’. He offers, instead, a ‘signature simile’ between the forms received by senses and the analogously matterless signatures transmitted by signet rings. This reading is supported by the use of the clause ‘forms without matter’ in Aristotle’s Corpus, which consistently refers to causally powerless and metaphysically sterile abstractions. I accordingly contend that the reception of perceptible forms without matter only describes the mental dimension of perception, and that the idea has no implications whatsoever with regard to physiology. The resulting attempt at capturing the mental aspect of perception is original and philosophically interesting: no unanalysable opposition of the mental to the physical is postulated, and currently crucial notions like ‘consciousness’ or ‘intentionality’ are playing no role at all.