In my chief work I have explained the only valid reason existing against suicide on the score of morality. It is this: that suicide thwarts the attainment of the highest moral aim by the fact that, for a real release from this world of misery, it substitutes one that is merely apparent. But from a mistake to a crime is a far cry; and it is as a crime that the clergy of Christendom wish us to regard suicide.
The inmost kernel of Christianity is the truth that suffering - the Cross - is the real end and object of life. Hence Christianity condemns suicide as thwarting this end; whilst the ancient world, taking a lower point of view, held it in approval, nay, in honor. But if that is to be accounted a valid reason against suicide it invokes the recognition of asceticism; that is to say, it is valid only from a much higher ethical standpoint than has ever been adopted by moral philosophers in Europe. If we abandon that high standpoint, there is no tenable reason left, on the score of morality, for condemning suicide. The extraordinary energy and zeal with which the clergy of monotheistic religions attack suicide is not supported either by any passages in the Bible or by any considerations of weight; so that it looks as though they must have some secret reason for their contention. May it not be this - that the voluntary surrender of life is a bad compliment for him who said that all things were very good? If this is so, it offers another instance of the crass optimism of these religions - denouncing suicide to escape being denounced by it.
On Suicide, Arthur Schopenhauer