Page:Dissertations and Discussions, Vol. 4 (1867).djvu/307

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name in other dialogues, Hippias even having two to himself. Now, while there is an undisguised purpose on Plato's part to lower the reputation of these men, and convict them of notunderstanding what they professed to teach, not a thought or a sentiment is ascribed to them of any immoral tendency, while they often appear in the character of serious and impressive exhorters to virtue.

With regard to Protagoras in particular, the discourse which he is made to deliver on the moral virtues is justly considered by Mr. Grote[1] as "one of the best parts of the Platonic writings.” It springs out of a doubt raised, seriously or ironically, by Sokrates, whether virtue is teachable, on the ground that there are no recegnized teachers of it, as there are of other things. Protagoras admits the fact, and says that the reason why there are no express teachers of virtue is, that all mankind teach it. Artistic or professional skill in any special department needs only be possessed by a few, for the benefit of the rest; but social and civic virtue, consisting in justice and self-restraint, is indispensable in every one; and as the welfare of each imperatively requires this virtue in others, every one inculcates it on all. A highly philosophieal as well as eloquent exposition follows,[2] "of the growth and propagatien of common sense — the common, established, ethical and social sentiment among a community; sentiment neither dictated in the beginning by any scientific or artistic lawgiver; nor personified in any special guild of craftsmen apart from the remaining community; nor inculcated by any formal professional teachers; nor tested by analysis; nor verified by comparison with any objective standard; but self-sown and

  1. Grote, vol. ii. p. 45.
  2. Ibid.