An accidentally unjust act and an accidentally just act are equally possible; e.g. a man might restore a deposit against his will for fear of consequences, and then you could not say that he did what was just or acted justly except accidentally: 128 and, similarly, a man who against his will was forcibly prevented from restoring a deposit would be said only accidentally to act unjustly or to do that which is unjust.

Voluntary acts, again, are divided into (1) those that are done of set purpose, and (2) those that are done without set purpose; i.e. (1) those that are done after previous deliberation, and (2) those that are done without previous deliberation.