But if it be necessary that omitting a multitude of arguments, we should make Plato himself a witness of the proposed discussion, we will cite if you please what is written in the Theætetus and Sophista; for from these dialogues what we assert will be apparent. In the Theætetus then Socrates being excited by a young man to a confutation of those who assert that being is immoveable, attacks among these an opinion of this kind entertained by Parmenides, and at the same time assigns the cause. “I blush,” says he, “for Parmenides, who is one of these, more than for all the rest; for I, when very young, was conversant with him when he was very elderly, and he appeared to me to possess a certain profundity perfectly generous. I am afraid therefore, lest we do not understand what has been asserted, and much more am I fearful that we fall short of the meaning of Parmenides.” With great propriety therefore do we assert, that the proposed discussion does not regard a logical exercise, and make this the end of the whole, but that it pertains to the science of the first principles of things. For how could Socrates using a power of this kind, and neglecting the knowledge of things, testify that the discourse of Parmenides possessed a depth perfectly generous? And what venerableness can there be in adopting a method which proceeds doxastically through opposite reasons, and in undertaking such an invention of arguments? Again, in the Sophista, exciting the Elean guest to a perspicuous evolution of the things proposed by him, and evincing that he was now accustomed to more profound discourses: “Inform me,” says he, “whether it is your custom to give a prolix discussion of a subject which you are able to demonstrate to any one by interrogations; I mean such discussions as Parmenides himself formerly used, accompanied with all-beautiful reasons, and of which I was an auditor when I was very young, and he was very elderly?” What reason then can be assigned, why we should not believe Socrates, when he asserts that the arguments of Parmenides were all-beautiful, and possessed a generous profundity, and why we should degrade the discussion of Parmenides, hurl it from essence and being, and transfer it to a vulgar, trifling, and empty contest, neither considering that discourses of this kind are alone adapted to youth, nor regarding the hypothesis of _being_ characterized by _the one_, nor any thing else which opposes such an opinion?