Abstract

This essay focuses on Spinoza’s claim that ideas of reason are necessary. While Spinoza understands necessity to imply that something cannot be otherwise, the author shows that Spinoza employs a narrower notion of necessity that applies only to some things, what LeBuffe describes as omnipresence: existing at all times and in all places. This account of the sense in which the ideas of reason are necessary makes evident that such ideas have especially strong motivational power. Our affects are more powerful when they represent a thing present, which entails that our ideas representing things as always present and, thus, our ideas of reason are more powerful. On this basis, the author concludes that ideas of reason have a special motivating force, which explains how they serve as commands or dictates.