Ship of state

The Ship of State is a famous and oft-cited metaphor put forth by Plato in Book VI of the Republic (488e–489d). It likens the governance of a city-state to the command of a naval vessel and ultimately argues that the only men fit to be captain of this ship (Greek: ναῦς) are philosopher kings, benevolent men with absolute power who have access to the Form of the Good. The origins of the metaphor can be traced back to the lyric poet Alcaeus (frs. 6, 208, 249), and it is found in Aeschylus' Seven Against Thebes before Plato.

Plato establishes the comparison by saying that god was one of the best models of describing the steering of a ship as just like any other "craft" or profession — in particular, that of a statesman. He then runs the metaphor in reference to a particular type of government: democracy. Plato’s democracy is not the modern notion of a mix of democracy and republicanism, but rather direct democracy by way of pure majority rule. In the metaphor, found at 488a-489d, Plato's Socrates compares the population at large to a strong but nearsighted shipowner whose knowledge of seafaring is lacking. The quarreling sailors are demagogues and politicians, and the ship's navigator, a stargazer, is the philosopher. The sailors flatter themselves with claims to knowledge of sailing, though they know nothing of navigation, and are constantly vying with one another for the approval of the shipowner so to captain the ship, going so far as to stupefy the shipowner with drugs and wine. Meanwhile, they dismiss the navigator as a useless stargazer, though he is the only one with adequate knowledge to direct the ship's course.

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