Chapter I. Suicide

SUICIDE, or the killing of one’s self, when one’s own death is the direct and immediate object of the will, is forbidden by the Fifth Commandment and is grievously sinful. It is the same when death is not the direct object of the will, if some act is done of which the only immediate effect is the destruction of one’s own life; for in that case by willing the action I implicitly will the effect. And so if, out of bravado, I jumped from the top of the tower of Westminster Cathedral into the street below, I should be guilty of the grave sin of suicide, even though that was not my direct object.

The reason why suicide is unlawful is because we have not the free disposal of our own lives. God is the-author of life and death, and he has reserved the ownership of human life to himself. We cannot leave the post where he has stationed us without his authority, Moreover, a man belongs to his country, and so suicide is a crime against the commonwealth, and as such is punished. There is a controversy among divines as to whether it would be lawful for a malefactor who had been condemned to death and entrusted by public authority with the execution of the sentence against himself to take his own life. Many hold that it would be lawful, for there seems no conclusive reason why the State might not appoint a man to be his own executioner.

It is not unlawful to do something which will cause one’s own death provided that the action has some other immediate and good effect of great importance, which counterbalances the loss of human life, and this is not intended. This is merely an application of the principle of a double effect which was explained in the Book on Human Acts. The captain of a man-of-war, for example, which in time of war is in danger of falling into the hands of the enemy, might blow up the ship in order to prevent so great a disaster befalling his country, although the act would cause his own death and that of others in the ship. He does not intend the destruction of human life; the immediate effect of his action is to prevent the ship falling into the enemy’s hands. The public advantage counterbalances the loss.

Similarly, for good reason I may undertake dangerous work, go to unhealthy climates, or lead a kind of life which will lessen the number of years that I shall live. Somebody must do such things; they are useful to the community or to myself, and I do not intend the shortening of my life. It would be wrong to expose my life to probable danger merely for the sake of getting money or notoriety; such reasons do not justify us in seriously risking human life.

As we have not the ownership of life, so neither are we the owners of our limbs so as to be able to dispose of them at will. A man is not justified in mutilating himself in order to avoid military conscription, or to excite commiseration, or to gain money. The amputation of a limb is permissible when such an operation is necessary in order to preserve life; for we may sacrifice a part for the safety of the whole.

We are obliged to take ordinary means to preserve our lives, for to do otherwise would be virtually to commit suicide. There is no obligation to take extraordinary, unusual, or very painful or expensive means to preserve our lives. And so one in feeble health, who will probably die if he spends the winter in England, is not bound to expatriate himself and go and live in a milder climate. Nor am I bound to undergo a painful and costly operation in order to save my life; I may if I like choose rather to die, unless my life is of great importance for the common good, for then the public good must be considered first. Except in such a case as this, a superior could not oblige a subject to undergo a very painful operation or to submit to the amputation of a leg; obedience to human authority does not seem to extend to such matters as these.