There is little worthy of remark in the characters of the Sophist. The most noticeable point is the final retirement of Socrates from the field of argument, and the substitution for him of an Eleatic stranger, who is described as a pupil of Parmenides and Zeno, and is supposed to have descended from a higher world in order to convict the Socratic circle of error. As in the Timaeus, Plato seems to intimate by the withdrawal of Socrates that he is passing beyond the limits of his teaching; and in the Sophist and Statesman, as well as in the Parmenides, he probably means to imply that he is making a closer approach to the schools of Elea and Megara. He had much in common with them, but he must first submit their ideas to criticism and revision. He had once thought as he says, speaking by the mouth of the Eleatic, that he understood their doctrine of Not-being; but now he does not even comprehend the nature of Being. The friends of ideas (Soph.) are alluded to by him as distant acquaintances, whom he criticizes ab extra; we do not recognize at first sight that he is criticizing himself. The character of the Eleatic stranger is colourless; he is to a certain extent the reflection of his father and master, Parmenides, who is the protagonist in the dialogue which is called by his name. Theaetetus himself is not distinguished by the remarkable traits which are attributed to him in the preceding dialogue. He is no longer under the spell of Socrates, or subject to the operation of his midwifery, though the fiction of question and answer is still maintained, and the necessity of taking Theaetetus along with him is several times insisted upon by his partner in the discussion. There is a reminiscence of the old Theaetetus in his remark that he will not tire of the argument, and in his conviction, which the Eleatic thinks likely to be permanent, that the course of events is governed by the will of God. Throughout the two dialogues Socrates continues a silent auditor, in the Statesman just reminding us of his presence, at the commencement, by a characteristic jest about the statesman and the philosopher, and by an allusion to his namesake, with whom on that ground he claims relationship, as he had already claimed an affinity with Theaetetus, grounded on the likeness of his ugly face. But in neither dialogue, any more than in the Timaeus, does he offer any criticism on the views which are propounded by another.