(3) However much the difficulty of understanding the causes may be increased, we never reach a conception of complete freedom, that is, an absence of cause. However inaccessible to us may be the cause of the expression of will in any action, our own or another’s, the first demand of reason is the assumption of and search for a cause, for without a cause no phenomenon is conceivable. I raise my arm to perform an action independently of any cause, but my wish to perform an action without a cause is the cause of my action.

But even if⁠—imagining a man quite exempt from all influences, examining only his momentary action in the present, unevoked by any cause⁠—we were to admit so infinitely small a remainder of inevitability as equaled zero, we should even then not have arrived at the conception of complete freedom in man, for a being uninfluenced by the external world, standing outside of time and independent of cause, is no longer a man.

In the same way we can never imagine the action of a man quite devoid of freedom and entirely subject to the law of inevitability.