We used to think that if we knew one, we knew two, because one and one are two. We are finding that we must learn a great deal more about 'and'.
Arthur EddingtonSchrรถdinger's wave-mechanics is not a physical theory, but a dodge - and a very good dodge too.
Arthur EddingtonScience is one thing, wisdom is another. Science is an edged tool, with which men play like children, and cut their own fingers.
Arthur Eddington