A man should look for what is, and not for what he thinks should be.

Subtle is the Lord. Malicious, He is not.

If you want to make your children brilliant, tell them fairy tales. If you want to make them more brilliant, tell them more fairy tales.

This is too difficult for a mathematician. It takes a philosopher. The hardest thing in the world to understand is the income tax.

You cannot simultaneously prevent and prepare for war.

Nothing truly valuable can be achieved except by the unselfish cooperation of many individuals.

The wireless telegraph is not difficult to understand. The ordinary telegraph is like a very long cat. You pull the tail in New York, and it meows in Los Angeles. The wireless is the same, only without the cat.