That…is the road to the obedience of compulsion. But there is a shorter way to a nobler goal, the obedience of the will. When the interests of mankind are at stake, they will obey with joy the man whom they believe to be wiser than themselves. You may prove this on all sides: you may see how the sick man will beg the doctor to tell him what he ought to do, how a whole ship's company will listen to the pilot.
Cyropaedia, Bk. 1, ch. 6; as translated by Henry Graham Dakyns in Cyropaedia (2004) p. 29.