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y other art. Protagoras' answer is that there are no special teachers of virtue, because virtue is taught by the whole community. Plato and Aristotle both accept the view of moral education implied in this answer. In a passage of the Republic (492 b) Plato repudiates the notion that the sophists have a corrupting moral influence upon young men. The public themselves, he says, are the real sophists and the most complete and thorough educators. No private education can hold out against the irresistible force of public opinion and the ordinary moral standards of society. But that makes it all the more essential that public opinion and social environment should not be left to grow up at haphazard as they ordinarily do, but should be made by the wise legislator the expression of the good and be informed in all their details by his knowledge. The legislator is the only possible teacher of virtue.
Such a programme for a treatise on government might lead us to expect in the Politics mainly a description of a Utopia or ideal state which might inspire poets or philosophers but have little direct effect upon political institutions. Plato's Republic is obviously impracticable, for its author had turned away in despair from existing politics. He has no proposals, in that dialogue at least, for making the best of things as they are. The first lesson his philosopher has to learn is to turn away from this world of becoming and decay, and to look upon the unchanging eternal world of ideas. Thus his ideal city is, as he says, a pattern laid up in heaven by which the just man may rule his life, a pattern therefore in the meantime for the individual and not for the statesman. It is a city, he admits in the Laws, for gods or the children of gods, not for men as they are.
Aristotle has none of the high enthusiasm or poetic imagination of Plato. He is even unduly impatient of Plato's idealism, as is shown by the criticisms in the second book. But he has a power to see the possibilities of good in things that are imperfect