Never allow a person to tell you no who doesn't have the power to say yes.
You only have power over people so long as you don't take everything away from them. But when you've robbed a man of everything, he's no longer in your power - he's free again.
A man's true state of power and riches is to be in himself.
Henry Ward Beecher
Power is the most persuasive rhetoric.
Power ought to serve as a check to power.
Charles de Secondat