o Strong men are not motivated simply by a desire to exploit their strength.A strong man or ruler is a sort of craftsman, skilled in the art of government, and this art, like the art of the physician or the ship's captain, must, to achieve its ends, care for the welfare of those who constitute its raw material, o Just as the physician tries to treat his patients successfully and the ship's captain tries to sail his ship with skill, so, Socrates argues, the ruler inevitably cares for the good of his subjects and will not therefore be interested solely in dominating them.