In the first place, therefore, Pythagoras in making trial [of the aptitude of those that came to him] considered whether they could echemuthein, i.e. whether they were able to refrain from speaking (for this was the word which he used), and surveyed whether they could conceal in silence and preserve what they had learnt and heard. In the next place, he observed whether they were modest. For he was much more anxious that they should be silent than that they should speak. He likewise directed his attention to every other particular; such as whether they were astonished by the energies of any immoderate passion or desire. Nor did he in a superficial manner consider how they were affected with respect to anger or desire, or whether they were contentious or ambitious, or how they were disposed with reference to friendship or strife. And if on his surveying all these particulars accurately, they appeared to him to be endued with worthy manners, then he directed his attention to their facility in learning and their memory.

And in the first place, indeed he considered whether they were able to follow what was said, with rapidity and perspicuity; but in the next place, whether a certain love and temperance attended them towards the disciplines which they were taught.

For he surveyed how they were naturally disposed with respect to gentleness. But he called this catartysis, i.e. elegance of manners. And he considered ferocity as hostile to such a mode of education. For impudence, shamelessness, intemperance, slothfulness, slowness in learning, unrestrained licentiousness, disgrace, and the like, are the attendants on savage manners; but the contraries on gentleness and mildness. He considered these things, therefore, in making trial of those that came to him, and in these he exercised the learners. And those that were adapted to receive the goods of the wisdom he possessed, he admitted to be his disciples, and thus endeavoured to elevate them to scientific knowledge. But if he perceived that any one of them was unadapted, he expelled him as one of another tribe, and a stranger.