[This became the famous maxim of law,--'Ignorantia facti excusat, ignorantia juris non excusat.'] If the agent, when better informed, repents of his act committed in ignorance, he affords good proof that the act done was really involuntary.

Acts done from anger or desire (which are in the agent's self) are not to be held as involuntary.

(1) If they were, the actions of brutes and children would be involuntary.

(2) Some of these acts are morally good and approved.

(3) Obligation often attaches to these feelings.