But I desire to demonstrate still more clearly the untoward character of these forces. Captains of mercenaries are either able men or they are not. If they are, you cannot trust them, since they will always seek their own aggrandizement, either by overthrowing you who are their master, or by the overthrow of others contrary to your desire. On the other hand, if your captain be not an able man the chances are you will be ruined. And if it be said that whoever has arms in his hands will act in the same way whether he be a mercenary or no, I answer that when arms have to be employed by a Prince or a Republic, the Prince ought to go in person to take command as captain, the Republic should send one of her citizens, and if he prove incapable should change him, but if he prove capable should by the force of the laws confine him within proper bounds.