All heathen superstitions crept into the assemblies of men without any certain authors, and were afterwards accumulated by fanatical persons on various occasions. But from "the book of Genesis" we learn that the doctrine of the church was delivered to our first parents by the voice of God, and that thence the knowledge of it was preserved and spread abroad in the world by a continued series of persons and events, and not without manifest evidences and testimonies. Enoch was taken up into heaven; Noah truly preached of the Flood and was afterwards preserved in the Flood; Abraham, Isaac, Jacob, Joseph, etc., for there are many signs and evidences that they were teachers and priests, truly called of God, were most certain witnesses, that the doctrine which they embraced and preached was from heaven. Symmachus objects against Christians, that all agree that the oldest doctrine must be the true one; but that the apostolic doctrine is a recent fiction. But Symmachus is here in a very great error; for it can be most manifestly proved that the doctrine now held by the Church is the first doctrine that was ever delivered to the world. And that is plainly shown in this "Book of Genesis," where both the doctrine is recorded as having been delivered of God; and also the increasing nations are described, which departed from the purity of that doctrine and formed for themselves new opinions concerning God and set up idols, instead of worshipping him. Therefore, we must come to this Book for a description of the beginnings of the Church, and for testimonies of its propagation; and it is to this Book that all doctrines must be referred in order to discover their origin or antiquity. Philosophers knew nothing of the cause of sin, of the cause of death, nor of the cause of the great calamities to which the human race are subject; nor did they know anything of the restitution of all things, nor of eternal life. They were continually inquiring, how there is so much misery in the nature of the human race, which is so exalted and excellent. How often do they exclaim against and lament man's violent and impetuous inclinations to vice! They see that his virtues are weak and that they are only faint attempts which soon vanish and end in nothing; as we see in Pausanius, who was the great general of the Greeks against Mardonius; and in Alexander; also in Themistocles and many others. Aristotle seeks for the cause of the death of the human race and of all other living creatures in their material nature; and to make good his hypotheses, he enumerates privation among the principles of natural things; that he might in some way or other make out a continual lapse of matter, decaying and perishing, in order to assume other forms.