For a prince should have two fears: one, internal concerning his subjects; the other, external, concerning foreign powers. From the latter he can always defend himself by his good troops and friends; and he will always have good friends if he has good troops.
Niccolo MachiavelliWhen settling disputes between his subjects, he should ensure that his judgement is irrevocable; and he should be so regarded that no one ever dreams of trying to deceive or trick him.
Niccolo Machiavelli