The only reason for being a professional writer is that you can't help it.
Early morning cheerfulness can be extremely obnoxious.
A lifetime is more than sufficiently long for people to get what there is of it wrong.
It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge.
If man does find the solution for world peace it will be the most revolutionary reversal of his record we have ever known.
The thing that impresses me the most about America is the way parents obey their children.
If all the rich people in the world divided up their money amongst themselves there wouldn't be enough to go around.
One's real life is often the life that one does not lead.
Do not worry about your difficulties in Mathematics. I can assure you mine are still greater.
It is well that war is so terrible, or we should grow too fond of it.