Strauss, Leo, "On Plato's Republic," The City and Man, Chicago: University of Chicago Press, 1964, 50-138.

Excerpt:

Generally speaking, we can know the thought of a man only through his speeches oral or written. We can know Aristotle’s political philosophy through his Politics. Plato’s Republic on the other hand, in contradistinction to the Politics, is not a treatise but a dialogue among people other than Plato. Whereas in reading the Politics we hear Aristotle all the time, in reading the Republic we hear Plato never.

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