Only a fool learns from his own mistakes. The wise man learns from the mistakes of others.

The luxury of one's own opinion.

Fools you are who say you like to learn from your mistakes. I prefer to learn from the mistakes of others, and avoid the cost of my own.

Never believe anything in politics until it has been officially denied.

Anyone who has ever looked into the glazed eyes of a soldier dying on the battlefield will think hard before starting a war.

The statesman's task is to hear God's footsteps marching through history, and to try and catch on to His coattails as He marches past.

War should only be used for a policy worth its sacrifices.