The motive or leading thought of the dialogue may be detected in Xen. Mem., and there is no similar instance of a 'motive' which is taken from Xenophon in an undoubted dialogue of Plato. On the other hand, the upholders of the genuineness of the dialogue will find in the Hippias a true Socratic spirit; they will compare the Ion as being akin both in subject and treatment; they will urge the authority of Aristotle; and they will detect in the treatment of the Sophist, in the satirical reasoning upon Homer, in the reductio ad absurdum of the doctrine that vice is ignorance, traces of a Platonic authorship. In reference to the last point we are doubtful, as in some of the other dialogues, whether the author is asserting or overthrowing the paradox of Socrates, or merely following the argument 'whither the wind blows.' That no conclusion is arrived at is also in accordance with the character of the earlier dialogues. The resemblances or imitations of the Gorgias, Protagoras, and Euthydemus, which have been observed in the Hippias, cannot with certainty be adduced on either side of the argument. On the whole, more may be said in favour of the genuineness of the Hippias than against it.