Every neighbouring state is an enemy and the enemy's enemy is a friend.

Fools call wise men fools. A wise man never calls any man a fool.

The tongue of a fool is the key of his counsel, which, in a wise man, wisdom hath in keeping.

The man who is truly wise knows that he knows very little.

The wise man seeks death all his life, and for this reason death is not terrifying to him.

Card players have a saying: "It's all right to play if you keep your eyes on the deck" - which is another way of saving, "Eternal vigilance is the price of liberty."