MORALITY, THE LAW OF MAN.--Yet reflect: if the foregoing be true, morality is the very law of man, his especial law, as the law of the tree is to spread in roots and branches. Well. But for man to be able to obey his law he must be free, must be able to do what he wishes. That is certain. Then it must be believed that we are free, for were we not, we could not obey our law; and the moral law would be absurd. The moral law is the _sign_ that we are free. Compared to this, all the other proofs of freedom are worthless or weak. We are free because we must be so in order to do the good which our law commands us to do. Let us examine further. I do what is right in order to obey the law; but, when I have done it, I have the idea that it would be unjust that I should be punished for it, or that I should not be rewarded for it, that it would be unjust were there not concordance between right and happiness. As it happens, virtue is seldom rewarded in this world and often is even punished; it draws misfortune or evil on him who practises it. Would not that be the sign that there are two worlds of which we see only one? Would not that be the sign that virtue unrewarded here will be rewarded elsewhere _in order that there should not be injustice?_ It is highly probable that this is so. But for that it is necessary that the soul be immortal. It is so, since it is necessary that it should be. The moral law is accomplished and consummated in rewards or penalties beyond the grave, which pre-suppose the immortality of the soul. All the other proofs of the immortality of the soul are worthless or feeble beside this one which demonstrates that were there no immortality of the soul there would be no morality. GOD.--And, finally, if justice is one day to be done, this supposes a Judge. It is neither ourselves who in another life will do justice to ourselves nor yet some force of circumstances which will do it to us. It is necessary to have an intelligence conceiving justice and a will to realise it. God is this intelligence and this will.