The mathematician is not capable of giving a reason in the same manner as the dialectician .

数学家不能够用伦理学家所用的方式进行推理。

Socrates uncovers the true distinctions, as befits one who knows what ought to be known and given justification---as befits, in other words, the dialectician.

苏格拉底揭开了真正的差别； 一个知晓应知之事和正当之事的人才适合如此，换言之，辩证法家（论辩家）才适合如此。