The satisfaction of physical needs is indeed the indispensable pre-condition of a satisfactory existence, but in itself it is not enough. In order to be content, men must also have the possibility of developing their intellectual and artistic powers to whatever extent accords with their personal characteristics and abilities.

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.

I never commit to memory anything that can easily be looked up in a book

I am also convinced that one gains the purest joy from spirited things only when they are not tied in with earning one's livelihood.

Dostoevsky gives me more than any scientist, more than Gauss.

Do things sound better in your head before you say them, or do you even run them through there first?

I cannot imagine a God who rewards and punishes the objects of his creation and is but a reflection of human frailty.