The Ontology and Syntax of Stoic Causes and Effects

Abstract The ontology of Stoic causes and effects was clearly anti-platonic, since the Stoics did not want to admit that any incorporeal entity could have an effect. However, by asserting that any cause was the cause of an incorporeal effect, they returned to Plato’s syntax of causes in the Sophist, whose doctrine of the asymmetry of nouns and verbs identified names with the agents and verbs with the actions. The ontological asymmetry of causes and effects blocked the multiplication of causes by reducing it to an efficient cause. However, while ontology and syntax merged into the doctrine of the effect as an incorporeal predicate, this was further complicated by a relational description of a cause as the effect of a body on a body and by the distinction of causes. Since there are different kinds of causes, not every kind of cause has the same syntactical role in the nexus of causal relations. This refinement of the original syntactical model presumably allowed the Stoics to give a more coherent view of human action than is usually assumed.