Niccolò Machiavelli,
The Prince (Hill Thomson) — Chapter XII: How Many Different Kinds of Soldiers There Are…
(1910)
“ 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. ”
