Morality, as far as the agent is concerned, apart from the nature and circumstances of the deed, supposes, first, voluntary acts, or acts that proceed from the will with a knowledge of the end toward which the acts tend; and, secondly, free acts, or acts that under given conditions may or may not be willed. If by unavoidable chance one stumbles against a man standing at the edge of a wharf, knocks him into the water, and drowns him, the act has no element of morality in it, because it is not voluntary and free. If a mind is diseased, and, impelled by a mad notion of persecution, it brings about a like killing, there is no question of morality, because the agent is not free, and when fully analysed his action is not voluntary. An act is more or less voluntary and free, and therefore more or less moral, as the agent is affected by ignorance, passionate desire, fear, or disease. Ignorance, fear, and disease may be such as to remove all quality of morality from an act. {106} Certain diseases or pathological conditions, especially of the nervous system, can take out of an act the elements of voluntariness and freedom that are necessary to make the act moral or immoral, provided, however, these pathological conditions are not brought on through the fault of the subject in which they exist. If a man voluntarily becomes drunk with alcohol, or some other drug, he is, of course, accountable for the evil he may unconsciously do while under the influence of that drug, and if he begets an idiot or a criminal imbecile in his drunkenness, he must atone somewhere for the blinded soul of his child. Here, again, there are certain extenuating circumstances, because very few drunkards are fully conscious of the extent of the evil in alcoholism. Apart from the other requirements that go to make an act moral, the agent must be sane; that the act be immoral, he must be sane or insane, either temporarily or permanently, through his own fault; that it be devoid of morality an act must be a mere _actus hominis_, or it must be the act of a person blamelessly insane. If a man knows that an alcoholic is liable to beget a criminal imbecile solely because of the alcoholism,--and most men are aware of that fact,--this father or grandfather is more or less accountable for every larceny, rape, and murder done by the imbecile. The law, therefore, should put the imbecile into safe keeping, then seek out the father and hang him.