Concupiscence is antecedent or consequent. The former precedes any action of the will, and so is involuntary. The latter is voluntary, either because it is deliberately and directly excited by the will, or at any rate willed in its cause.
2. Antecedent concupiscence lessens the malice of an evil action which is done under its impulse. For concupiscence troubles the intellect, so that it cannot dispassionately weigh the moral quality of the object proposed to the will and the motives for rejecting it; moreover, concupiscence paints the object in more than naturally attractive colours, so that it exerts an undue influence on the will. Concupiscence thus disturbs the indifference of the will and renders the act which follows less voluntary and free. It is accordingly less imputable to the agent.
It sometimes happens that antecedent concupiscence renders the subsequent action involuntary, and so in no wise imputable, however wrong it may be. This will be the case when some sudden onslaught of passion deprives the agent of the use of reason and blindly impels him to evil. Strong passions, such as love or anger, especially in impressionable natures, sometimes produce this result, and even when murder or suicide is committed in such circumstances juries are warranted in bringing in a merciful verdict of murder or suicide while temporarily insane. If, however, the passion was not altogether antecedent, but in the early stages of its onslaught there was room for deliberation, the consequent evil will not be altogether involuntary; it will to some extent be voluntary in its cause at least. [1]
3. It used to be a matter of dispute among theologians whether a man could be insane and not responsible for his actions in some one category, while he retained his self-control in others. In our days it will hardly be disputed that monomania exists, and if it exists, as, for example, in the matter of intoxicating drink, the monomaniac will not be directly responsible for his actions done under the influence of his madness, although he may be responsible for them in their cause. [2]
- ↑ St Thomas, 1-2, q. 77, a. 7, can. 2206.
- ↑ Similarly, those who suffer from illusions may be so demented on the particular point as not to be responsible for actions which they perform under the influence of their illusion. It is a question of fact when this is the case, a fact which it is difficult even for experts to determine. Natural propensities to evil arising from hereditary taint or from temperament lessen the voluntariness of the action just as passion does, but they are not as a rule so strong as to make what in itself is mortally sinful only venial. The struggle against vice is more difficult for those who are subject to such propensities, but as long as they are in their right senses with the help of God's grace they can resist, if only they take the necessary means. The same must be said of those who have strengthened their passions and weakened their will by long indulgence in a habit of sin. V. Frins, De Act. Hum. i, n. 236. " There is not, and there never has been, a person who labours under partial delusion only, and is not in other respects insane." C. Mercier, Criminal Responsibility, 1905, p. 174. However, on p. 203 the same author writes: " The majority of insane persons are sane in a considerable proportion of their conduct; and when in this part of their conduct they commit offences they are rightly punishable." Perhaps the explanation of this apparent contradiction lies in a sentence which immediately follows the last. It is this: " Since the limits between the sane and the insane areas of conduct of insane persons are ill defined, no insane person should be punished with the same severity that would be awarded to a sane person for the same offence."
