Machiavelli said leader must not use public funds. And the rules three is not to rob the public purse. Must be protected from external aggression. And must not be abused as a poor conclusion. The Prince must not spend anything on its own or of serfs the cost of the others. If the action is as follows: leader can create greatness without the use of a leader or of serfs. It will also be righteous and not locked from the public.