One may say the eternal mystery of the world is its comprehensibility.
When I examine myself and my methods of thought, I come to the conclusion that the gift of fantasy has meant more to me than any talent for abstract, positive thinking.
The formulation of the problem is often more essential than its solution, which may be merely a matter of mathematical or experimental skill.
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 cannot tell if I would have done any creative work of importance in music, but I do know that I get most joy in life out of my violin.
In the matter of physics, the first lessons should contain nothing but what is experimental and interesting to see. A pretty experiment is in itself often more valuable than twenty formulae extracted from our minds.
God always takes the simplest way.