Abstract

The ontological status of forces and their causal role in Descartes’ physical world is debated among Descartes scholars. The question of forces is embedded in another more general question, namely to determine which causal activity should be attributed to God, and which causal activity should be attributed to physical bodies. Three distinct positions were attributed to Descartes: 1. he was an occasionalist and he attributed no causal power to forces, 2. he was a pure conservationist and he conceived forces as entities distinct from matter and motion, 3. he was a concurrentist who attributed causal activity both to God and to second causes, especially to forces and laws. These three interpretations seem to exhaust the possibilities. In this chapter however, I defend another interpretation of Descartes’ position, according to which God intervenes in this world only to conserve it by his ordinary concurrence (in this I agree with the conservationist interpretation), without, for all that, forces or laws being specific entities (in this I agree with the occasionalist interpretation). My interpretation leads to downplaying the strong relationship which is assumed to exist between Descartes’ physics and his metaphysics.