Note 87 — Chapter IV · (continued 5)

“The suggestion of Dr. Williams,” says Judge Stephen, “that Dove had allowed his mind to dwell on his wife’s death till at last he became the victim of an uncontrollable propensity to kill her, if correct, would not prove that his act was not voluntary. It is setting and keeping the mind in motion towards an object plainly conceived that constitutes the mental part of an act. Every act becomes irrevocable before it is consummated. If a man, for example, strikes another, he may repent while his arm is falling; but there is a point at which he can no more deprive his arm of the impetus with which he has animated it, than he can divert from its course a bullet which has been fired from a rifle. Suppose he deals with his mind in this manner at an earlier stage of the proceeding, and so fills himself with a passionate, intense longing for the forbidden object or result, that he becomes, as it were, a mere machine in his own hands. Is not the case precisely similar, and does not the action continue to be voluntary and wilful, although the act of volition which made it irrevocable preceded its completion by a longer interval than usual?