Blitz, Mark, "Knowledge and Politics: The Statesman," Plato's Political Philosophy, Baltimore, MD: Johns Hopkins University Press, 2010, 241-68.

Excerpt:

The Stranger and young Socrates begin to search for the statesman by agreeing that he is characterized by knowledge or art. What, then, defines his art as opposed to other arts? They first divide all knowledge into practical and cognitive science, and, surprisingly, place the statesman in the cognitive half. Practical arts such as carpentry “possess their science as if it naturally inheres in their actions,” completing through their actions new bodies. Cognitive arts such as arithmetic furnish only knowledge.

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