The Cambridge Dictionary of Philosophy Quotes

“Medieval philosophers distinguished the internal activity of the agent from the external event produced by that activity. The former was called “immanent causation” and the latter “transeunt causation.” These terms have been adapted by Chisholm and others to mark the difference between agent causation and event causation. The idea is that the internal activity is agent-caused by the person whose activity it is, whereas the external event is event-caused by the internal activity of the agent.”
― Robert Audi, The Cambridge Dictionary of Philosophy