This paper argues that, for Bernard Nieuwentijt, mathematical reasoning on the basis of ideas is not the same as logical reasoning on the basis of propositions. Noting that the two types of reasoning differ helps make sense of a peculiar-sounding claim Nieuwentijt makes, namely that it is possible to mathematically deduce false propositions from true abstracted ideas. I propose to interpret Nieuwentijt’s abstracted ideas as incomplete mental copies of existing objects. I argue that, according to Nieuwentijt, a proposition is mathematically (...) deducible from an abstracted idea if it can be demonstrated that that proposition makes a true claim about the object that idea forms. This allows me to explain why Nieuwentijt deems it possible to deduce false propositions from true ideas. It also implies that logic and mathematics are not as closely related for Nieuwentijt as has been suggested in the existing secondary literature. (shrink)

How are we to understand philosophical claims about sense perception being direct versus indirect? There are multiple relevant notions of perceptual directness, so I argue. Perception of external objects may be direct on some notions, while indirect on others. My interest is with the sense in which ideas count as perceptual mediators in the philosophy of Descartes and Locke. This paper has two broader aims. The first is to clarify four main notions of perceptual directness. The second is to support (...) my contention that in the texts characterizing ideas as immediate objects of perception, Descartes and Locke are invoking the notion of directness I call 'objectual'. This notion is modeled on the way a picture mediates perception of the pictured object. The upshot of my account is that – with respect to the objectual notion of directness – Descartes and Locke each hold an indirect theory of perception. (shrink)

: Two common ways of explaining akrasia will be presented, one which focuses on strength of desire and the other which focuses on action issuing from practical judgment. Though each is intuitive in a certain way, they both fail as explanations of the most interesting cases of akrasia. Spinoza 's own thoughts on bondage and the affects follow, from which a Spinozist explanation of akrasia is constructed. This account is based in Spinoza 's mechanistic psychology of cognitive affects. Because Spinoza (...) 's account explains action asissuing from modes of mind that are both cognitive and affective, it captures the intuitions that motivate the two traditional views while avoiding the pitfalls that result from their one‐sided approaches. This project will allow us a fuller understanding of Spinozist moral psychology. In addition to this historical value, the Spinozist theory may offer a satisfactory explanation of certain hard cases of akrasia while avoiding the problems be set by other theories. For this reason, the Spinozist account could also be seen as a useful contribution to our philosophical understanding of the phenomenon of akrasia. (shrink)

The article defines the problem of the nature of ideas in Descartes’s philosophy according to the ontology of substances. First, it illuminates Descartes’s relation to antecedent theories of ideas (as platonic forms or as corporal images) and demonstrates that, in opposition to them, Descartes conceives ideas as modes of thinking substance. Then, it develops two possible explanations of his theory. The first one understands an idea as a complex consisting of perception and its necessary internal object, which enables the representation (...) of external objects. The second one understands it as an act with intrinsic representative structure. By using Arnauld’s analysis of Descartes’s texts, it demonstrates that in accordance with the second model, an idea is a singular mode of thinking substance, which should at the same time be understood as an act of mind and as a representation of objects. (shrink)

The primary aim of this paper is to provide a new account of Descartes’s positive philosophical view on sensory perception, and to do so in a way that will establish a hitherto unnoticed continuity between his thought and that of his scholastic Aristotelian predecessors on the topic of sensory perception. I will argue that the basic framework of the scholastic Aristotelian view on sensory perception (as traditionally understood) is operative within Descartes's own view, and then reveal some insights on the (...) issue of whether Descartes was a representationalist about sensory perception by critically examining one kind of representationalist reading of Descartes under the lens of my account. I will conclude by examining the implications that my view has for the proposed distinction between Descartes and the scholastics based on attributing representationalism to the former and direct-realism to the latter. (shrink)