The dogmas taught by remarkable sects will be adduced; and to these will be opposed all that ought to be premised in accordance with the profoundest contemplation of the knowledge, which, as we proceed to the renowned and venerable canon of tradition, from the creation of the world, will advance to our view; setting before us what according to natural contemplation necessarily has to be treated of beforehand, and clearing off what stands in the way of this arrangement. So that we may have our ears ready for the reception of the tradition of true knowledge; the soil being previously cleared of the thorns and of every weed by the husbandman, in order to the planting of the vine. For there is a contest, and the prelude to the contest; and there are some mysteries before other mysteries. Our book will not shrink from making use of what is best in philosophy and other preparatory instruction. “For not only for the Hebrews and those that are under the law,” according to the apostle, “is it right to become a Jew, but also a Greek for the sake of the Greeks, that we may gain all.”[833] Also in the Epistle to the Colossians he writes, “Admonishing every man, and teaching every man in all wisdom, that we may present every man perfect in Christ.”[834] The nicety of speculation, too, suits the sketch presented in my commentaries. In this respect the resources of learning are like a relish mixed with the food of an athlete, who is not indulging in luxury, but entertains a noble desire for distinction. By music we harmoniously relax the excessive tension of gravity. And as those who wish to address the people, do so often by the herald, that what is said may be better heard; so also in this case. For we have the word, that was spoken to many, before the common tradition. Wherefore we must set forth the opinions and utterances which cried individually to them, by which those who hear shall more readily turn. And, in truth, to speak briefly: Among many small pearls there is the one; and in a great take of fish there is the beauty-fish; and by time and toil truth will gleam forth, if a good helper is at hand. For most benefits are supplied, from God, through men. All of us who make use of our eyes see what is presented before them. But some look at objects for one reason, others for another. For instance, the cook and the shepherd do not survey the sheep similarly: for the one examines it if it be fat; the other watches to see if it be of good breed. Let a man milk the sheep’s milk if he need sustenance: let him shear the wool if he need clothing. And in this way let me produce the fruit of Greek erudition.