What the teaching of that divine voice is, the philosophers who had imbibed the sublime ethics of the Porch went on to expound: It is not enough to act up to the written law, or to give all men their due; we ought to give them more than their due, to be generous and beneficent, to devote ourselves for the good of others, seeking our reward in self-denial and sacrifice, acting from the motive of sympathy and not of personal advantage. Therefore we must treat others as we wish to be treated by them, and must persist until death in doing good to our enemies, regardless of unworthiness and ingratitude. For we must be at war with evil, but at peace with men, and it is better to suffer than to commit injustice. True freedom, says the most eloquent of the Stoics, consists in obeying God. A State governed by such principles as these would have been free far beyond the measure of Greek or Roman freedom; for they open a door to religious toleration, and close it against slavery. Neither conquest nor purchase, said Zeno, can make one man the property of another. These doctrines were adopted and applied by the great jurists of the Empire. The law of nature, they said, is superior to the written law, and slavery contradicts the law of nature. Men have no right to do what they please with their own, or to make profit out of another's loss. Such is the political wisdom of the ancients, touching the foundations of liberty, as we find it in its highest development, in Cicero, and Seneca, and Philo, a Jew of Alexandria. Their writings impress upon us the greatness of the work of preparation for the Gospel which had been accomplished among men on the eve of the mission of the Apostles. St. Augustine, after quoting Seneca, exclaims: "What more could a Christian say than this Pagan has said?" The enlightened pagans had reached nearly the last point attainable without a new dispensation, when the fulness of time was come. We have seen the breadth and the splendour of the domain of Hellenic thought, and it has brought us to the threshold of a greater kingdom. The best of the later classics speak almost the language of Christianity, and they border on its spirit.