Spinoza reasons about impossibilities on a regular basis. But he also says they're unthinkable and that reasoning is a mental process. How can he do this? The paper defends a linguistic account of counterpossible inferences in Spinoza's geometrical method.

This paper examines Spinoza’s view on the consistency of mental representation. First, I argue that he departs from Scholastic tradition by arguing that all mental states—whether desires, intentions, beliefs, perceptions, entertainings, etc.—must be logically consistent. Second, I argue that his endorsement of this view is motivated by key Spinozistic doctrines, most importantly the doctrine that all acts of thought represent what could follow from God’s nature. Finally, I argue that Spinoza’s view that all mental representation is consistent pushes him to (...) a linguistic account of contradiction. (shrink)

Almost all scholars of the Enlightenment consider Hobbes, Spinoza, and Locke as the founding theorists of the “secular modern state.” In contrast to the widely held view of the modern state, I argue that far from being “secular” it was the product of the sacralization of politics, which resulted from the way these philosophers interpreted the Scriptures as part of their philosophical inquiries. The analysis of the “linguistic turn” in their biblical interpretations reveals how they tried to undermine the power (...) of the Church to claim greater freedoms for the state. Their philosophical inquiries initiated the secularization of the Christian religion and the sacralization of politics as two correlative developments, rather than the secularization of the state per se, as is usually supposed. The philosophical arguments proposed by Hobbes, Spinoza, and Locke helped to resolve the religious battles of Europe’s many confessions in the seventeenth and eighteenth centuries, but are still pertinent to our c... (shrink)

(2013). Spinoza and the Cosmological Argument According to Letter 12. British Journal for the History of Philosophy: Vol. 21, No. 1, pp. 57-77. doi: 10.1080/09608788.2012.696052.