Abstract

Determinism is the view that any event is determined by previous events and the laws of nature. My claim is that Plotinus's, Leibniz's and Berkeley's rejection of determinism is structurally similar. Indeed, while determinism holds that phenomenal changes (ontologically) depend only on the way the laws of Nature apply to the previous conditions of the states of the world, the three philosophers all argues for the claim that the laws of Nature are not independent on the mind (the Hypostasis of Soul or the Divine Mind). That is to say: laws of nature are not mechanisms producing the succeeding of one event to the others, namely are not properties of a non mental substance. Rather, they are regularities (ontologically dependent on the mind, since) established by a Mind. Plotinus, Leibniz and Berkeley hold a two steps argument: a) laws of nature aren't properties of a material substance accounting for phenomenal changes, since undifferentiated matter doesn't exist; b) even if regularities in phenomenal changes could be refer to properties of a substance, these regularities couldn't be construed as non mental mechanisms, because any transition from, say, event A to event B, lacks causal power.