1. In the first of our replies to the book which Celsus composed against us, which he boastfully entitled The True Doctrine, to the best of our ability, as you commanded, most Christian Ambrose, we dealt with his preface and the subsequent arguments, testing each objection, and we ended with the fictitious harangue which his Jew addressed to Jesus. In the second we did our best to answer all the similar remarks which his Jew addressed to us who believe in God through Christ. We now begin the third book, in which it is our object to contest the points which he makes in his own person. He says now that Christians and Jews quarrel with one another very foolishly, and that our wrangle with one another about Christ is no different from that called in the proverb a fight about the shadow of an ass. And he thinks there is nothing worthy of attention in the dispute of Jews and Christians with one another, since they both believe that by divine inspiration a certain saviour was prophesied to be coming to dwell among mankind; but they do not agree as to whether the one prophesied has come or not.