(1) An agent is morally responsible only for actions that are voluntary.
(2) An action is voluntary only if its origin is in the agent.
(3) The origin of an action is the earliest event whose occurrence is sufficient for the action.
(4) If determinism is true, events in the distant past are the origin of our actions.
(5) Conclusion: Either determinism is false, or agents are not morally responsible.
 He also offers a logical argument that he takes to prove absurd the maintenance of a determinist view. However, this proves to be a relatively weak argument – much less substantial than his reasoning I offer here.