[208] for since Moses is the purest mind, and Aaron is his speech, and moreover, since the mind has been taught to think of divine things in a divine manner, and since the speech has learnt to interpret holy things in holy language, the sophists imitating them, and adulterating the genuine coinage, say, that they also conceive rightly, and speak in a praiseworthy manner about what is most excellent. In order, therefore, that we may not be deceived by a placing of the base money in juxtaposition with the good, by reason of [153] [154] the similitude of the impression, he has given us a test by which they may be distinguished.