“It is better to believe than to disbelieve; in doing you bring everything to the realm of possibility.”

“You can believe nothing or everything is a miracle. I believe everything is a miracle.”

“Is it not better for a man to die for a cause in which he believes, such as peace, than to suffer for a cause in which he does not believe, such as war?”

“Look deep into nature, and then you will understand everything better.”

“Everything must be made as simple as possible. But not simpler.”

“It would be possible to describe everything scientifically, but it would make no sense; it would be without meaning, as if you described a Beethoven symphony as a variation of wave pressure.”

“You have to learn the rules of the game. And then you have to play better than anyone else.”