"I must confess that the degree of their brutality and cowardice came as something of a surprise."

"If I were not a physicist, I would probably be a musician. I often think in music. I live my daydreams in music."

"I am by heritage a Jew, by citizenship a Swiss, and by temperament a human being, and only a human being, without any special attachment to any state or national entity whatsoever."

"Falling in love is not at all the most stupid thing that people do-but gravitation cannot be held responsible for it."

"It is not the critic who counts; not the man who points out how the strong man stumbles, or where the doer of deeds could have done them better. The credit belongs to the man who is actually in the ar…"