Frederick The Great

Diplomacy without arms is like music without instruments.

A crown is merely a hat that lets the rain in.

Don't forget your great guns, which are the most respectable arguments of the rights of kings.

Great advantage is drawn from knowledge of your adversary and when you know the measure of his intelligence and character you can use it to play on his weakness.

Be more than you seem to be.

It seems to me that man is made to act rather than to know: the principles of things escape our most persevering researches.

Every man has a wild beast within him.

An educated people can be easily governed.

Diplomacy without arms is like a concert without a score.

Rogues, would you live forever?