aristocrat

Professor Fite, in The Platonic Legend, deprecates earlier idealization, and finds Plato to be an aristocrat, something of a snob, and the advocate of a restrictively organized society.

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Plato was, as has so often been observed, temperamentally an aristocrat. And he believed that the qualities needed in his rulers were, in general, hereditary, and that given knowledge and opportunity you could deliberately breed for them.