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Cavendish And Berkeley On Inconceivability And Impossibility, Peter West, Colin Chamberlain

Western Ontario Early Modern Philosophy (WOEMP) Online Events

In this paper, I compare Margaret Cavendish’s argument for the view that colours of objects are inseparable from their ‘physical’ qualities (such as size and shape) with George Berkeley’s argument for the view that secondary qualities of objects (such as colours, tastes, and sounds) are inseparable from their primary qualities (such as size and shape). By reconstructing their respective arguments, I show that both thinkers rely on the ‘inconceivability principle’: the claim that inconceivability entails impossibility. That is, both premise their arguments on the claim that it is impossible to conceive of an object that has size and shape but …