"It is not that I'm so smart, but I stay with problems longer."

"Imagination is the preview of life's coming attractions."

"The most beautiful experience we can have is the mysterious. It is the fundamental emotion which stands at the cradle of true art and true science."

"I am almost ashamed to be living in such peace while all the rest struggle and suffer."

"Sometimes one has to look at the world from a distance to appreciate its beauty."