Henry More and Nicolas Malebranche, each in his own way, drew a distinction between two kinds of extension, the one indivisible and the other divisible. Spinoza also drew a comparable distinction, explaining that, insofar as extended substance was conceived intellectually, it would be grasped as indivisible, whereas, when it was instead depicted in the imagination, it would be seen as divisible. But, whereas for Spinoza these were just different views on one and the same extended substance, More and Malebranche's two (...) kinds of extension were supposed to be really distinct from one another. Consequently, neither of them could identify Spinoza's substance with both of his own non-identical kinds; and so they faced a choice over which one they would associate it with. The intriguing thing is that here they diverged. More felt that Spinoza's substance was actually divisible, and consequently material. Malebranche felt that it was actually indivisible, and consequently ideal and divine. In each case, they felt that the other kind of extension—whichever that might be—was simply absent from Spinoza's system. This article explores this divergence between More and Malebranche's interpretations of Spinoza's metaphysics, and it seeks an explanation for it in their own respective epistemologies. (shrink)

The ArgumentThe claim that Jan Swammerdam's empirical research did not support his theory of biological preformation is shown to rest on a notion of evidence narrower than that used by many seventeenth-century natural philosophers. The principles of evidence behind the use of mechanical models are developed. It is then shown that the Cartesian theory of biological reproduction and embryology failed to gain acceptance because it did not meet the evidential requirements of these principles. The problems in this and other mechanistic (...) theories prior to Swammerdam are found to arise from certain difficulties and tensions in the mechanical conception of nature, which Swammerdam's theory is able to resolve. The relation between Swammerdam's empirical research and his theory is examined and shown to satisfy the required notion of evidence.Leibniz' puzzling appeals to Swammerdam's research in support of his metaphysical doctrine of the spontaneous development of individual substances are then examined and shown to fall within the parameters of the notion of evidence. (shrink)

Is physicalism compatible with either panpsychism or so-called fundamental mentality ? Minimal physicalism, I contend, is compatible with both. We should therefore jettison the No Fundamental Mentality constraint, a proposed constraint on the definition of the physical, not to mention the false limits it places on physicalist theories of mind.

In the _Meditations_ and related texts from the early 1640s, Descartes argues that the self can be correctly considered as either a mind or a human being, and that the self’s properties vary accordingly. For example, the self is simple considered as a mind, whereas the self is composite considered as a human being. Someone might object that it is unclear how merely considering the self in different ways blocks the conclusion that a single subject of predication—the self—is both simple (...) and composite, which is contradictory. In response to this objection, this paper develops a reading of Descartes’s various ways of considering the self. I argue that the best reading of Descartes’s qualified claims about the self, i.e., about the self _qua_ mind or the self qua human being, presupposes an account of the unqualified self, that is, of the self _simpliciter_. I argue that the self _simpliciter_ is not a mind, and that it is not a human being either. This result might suggest the pessimistic conclusion that Descartes’s view of the self is incoherent. To avoid this result, I introduce a new metaphysical account of the Cartesian self. On my view, the self is individuated by a unified mental life. The self is constituted by the beings that jointly produce this mental life, and derives its unity from it. (shrink)

Mary Astell (1666-1731) relies on a Cartesian account of the self to argue that both men and women are essentially thinking things and, hence, that both should perfect their minds or intellects. This account of the self might seem to ignore the inescapable fact that we have bodies. I argue that Astell accommodates the self’s embodiment along three dimensions. First, she tempers her sharp distinction between mind and body by insisting on their union. Second, she argues that the mind-body union (...) is good, at least when the body obeys the mind. Third, though Astell identifies the self with the mind, she identifies the person with the combination of mind and body. (shrink)

Do the senses represent causation? Many commentators read Nicolas Malebranche as anticipating David Hume’s negative answer to this question. I disagree with this assessment. When a yellow billiard ball strikes a red billiard ball, Malebranche holds that we see the yellow ball as causing the red ball to move. Given Malebranche’s occasionalism, he insists that the visual experience of causal interaction is illusory. Nevertheless, Malebranche holds that the senses represent finite things as causally efficacious. This experience of creaturely causality explains (...) why Aristotelian philosophers and others struggle to recognize occasionalism’s truth. (shrink)

Leibniz participates in a quite important thought tradition of christian Europe, that of concordia between Christians, or between religions. With him this heritage is universalised: the globalization of concordia gives birth to Leibniz’s harmony of universal truth, that the whole of humankind can access.