Abstract

This chapter is devoted to explaining the nature and use of metaphysical necessity in Newton’s “General Scholium.” In particular, it focuses on Newton’s metaphysical commitments about (i) the nature of modality; (ii) the nature of formal causation; and (iii) God’s existence. In order to explain these, the chapter draws on Clarke and Clarke’s subsequent correspondence with Joseph Butler. In order to clarify some philosophical distinctions, I treat Toland’s Spinozism, in particular, as the target of some of Newton’s arguments. Along the way, I’ll provide suggestive evidence that Newton was in a decent position to distinguish the thought of Descartes from Spinozism.