[252]
Again, suppose the case of men who, having mastered the art of war, did not use their skill against the enemy, but rose up and slew many of their fellow-citizens; or suppose the case of men who, having been trained to perfection in the art of boxing or of the pancration, kept away from the games and fell foul of the passers-by; would anyone withhold praise from their instructors instead of putting to death those who turned their lessons to an evil use?1
1 The same point is made in Isoc. 3.3-4. Cf. Aristot. Rh. 1355b.