To whom we say, that among you who are Jews, and among the most famous of the philosophers among the Greeks, very many sects have sprung up. And yet you do not say that one ought to hesitate to philosophize or Judaize, because of the want of agreement of the sects among you between themselves. And then, that heresies should be sown among the truth, as “tares among the wheat,” was foretold by the Lord; and what was predicted to take place could not but happen. And the cause of this is, that everything that is fair is followed by a foul blot. If one, then, violate his engagements, and go aside from the confession which he makes before us, are we not to stick to the truth because he has belied his profession? But as the good man must not prove false or fail to ratify what he has promised, although others violate their engagements; so also are we bound in no way to transgress the canon of the Church. And especially do we keep our profession in the most important points, while they traverse it.