But if the Hellenic philosophy comprehends not the whole extent of the truth, and besides is destitute of strength to perform the commandments of the Lord, yet it prepares the way for the truly royal teaching; training in some way or other, and moulding the character, and fitting him who believes in Providence for the reception of the truth. CHAPTER XVII. ON THE SAYING OF THE SAVIOUR, “ALL THAT CAME BEFORE ME WERE THIEVES AND ROBBERS.”[953] But, say they, it is written, “All who were before the Lord’s advent are thieves and robbers.” All, then, who are in the Word (for it is these that were previous to the incarnation of the Word) are understood generally. But the prophets, being sent and inspired by the Lord, were not thieves, but servants. The Scripture accordingly says, “Wisdom sent her servants, inviting with loud proclamation to a goblet of wine.”[954] But philosophy, it is said, was not sent by the Lord, but came stolen, or given by a thief. It was then some power or angel that had learned something of the truth, but abode not in it, that inspired and taught these things, not without the Lord’s knowledge, who knew before the constitution of each essence the issues of futurity, but without His prohibition. For the theft which reached men then, had some advantage; not that he who perpetrated the theft had utility in his eye, but Providence directed the issue of the audacious deed to utility. I know that many are perpetually assailing us with the allegation, that not to prevent a thing happening, is to be the cause of it happening. For they say, that the man who does not take precaution against a theft, or does not prevent it, is the cause of it: as he is the cause of the conflagration who has not quenched it at the beginning; and the master of the vessel who does not reef the sail, is the cause of the shipwreck. Certainly those who are the causes of such events are punished by the law. For to him who had power to prevent, attaches the blame of what happens. We say to them, that causation is seen in doing, working, acting; but the not preventing is in this respect inoperative. Further, causation attaches to activity; as in the case of the shipbuilder in relation to the origin of the vessel, and the builder in relation to the construction of the house. But that which does not prevent is separated from what takes place. Wherefore the effect will be accomplished; because that which could have prevented neither acts nor prevents. For what activity does that which prevents not exert? Now their assertion is reduced to absurdity, if they shall say that the cause of the wound is not the dart, but the shield, which did not prevent the dart from passing through; and if they blame not the thief, but the man who did not prevent the theft. Let them then say, that it was not Hector that burned the ships of the Greeks, but Achilles; because, having the power