“If tomorrow were never to come, it would not be worth living today.”

“Life isn't worth living, unless it is lived for someone else.”

“live as if you were to die tommorow.dream as if you were to live forever”

“Do not grow old, no matter how long you live. Never cease to stand like curious children before the Great Mystery into which we were born.”

“If I were not a physicist, I would probably be a musician. I often think in music. I live my daydreams in music. I see my life in terms of music.”

“If we knew what it was we were doing, it would not be called research, would it?”

“I never think of the future - it comes soon enough.”