“Never memorize something that you can look up.”

“You do not really understand something unless you can explain it to your grandmother.”

“You can never solve a problem on the level on which it was created.”

“When you look at yourself from a universal standpoint, something inside always reminds or informs you that there are bigger and better things to worry about.”

“It was, of course, a lie what you read about my religious convictions, a lie which is being systematically repeated. I do not believe in a personal God and I have never denied this but have expressed it clearly. If something is in me which can be called religious then it is the unbounded admiration for the structure of the world so far as our science can reveal it.”

“A photograph never grows old. You and I change, people change all through the months and years but a photograph always remains the same. How nice to look at a photograph of mother or father taken many years ago. You see them as you remember them. But as people live on, they change completely. That is why I think a photograph can be kind.”

“Once you can accept the universe as matter expanding into nothing that is something, wearing stripes with plaid comes easy.”