It is useless to hope that being a king will make a naturally violent man virtuous.
 Bertrand Russell, A History of Western Philosophy (1945). copy citation

Context

“Absolute monarchy is not a form of civil government, because there is no neutral authority to decide disputes between the monarch and a subject; in fact the monarch, in relation to his subjects, is still in a state of nature. It is useless to hope that being a king will make a naturally violent man virtuous. “He that would have been insolent and injurious in the woods of America would not probably be much better in a throne, where perhaps learning and religion shall be found out to justify all that he shall do to his subjects, and the sword presently silence all those that dare question it.”” source