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

The most significant event of the 20th century will be the fact that the North Americans speak English.

With a gentleman I am always a gentleman and a half, and with a fraud I try to be a fraud and a half.

When a man says he approves of something in principle, it means he hasn't the slightest intention of carrying it out in practice.

There is a Providence that protects idiots, drunkards, children and the United States of America.

An appeal to fear never finds an echo in German hearts.

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