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. 

Our heritage and ideals, our code and standards - the things we live by and teach our children - are preserved or diminished by how freely we exchange ideas and feelings.

A theory must be tempered with reality.

Change in all things is sweet.

If Hitler invaded hell I would make at least a favourable reference to the devil in the House of Commons. 

People in democratic nations seem adopt a laidback attitude after voting.

The pessimist sees difficulty in every opportunity. The optimist sees the opportunity in every difficulty.  

Fear has its use but cowardice has none.

If you set your goals ridiculously high and it's a failure, you will fail above everyone else's success.

Well done is better than well said. 

Climbing to the top demands strength, whether it is to the top of Mount Everest or to the top of your career.

If you aren't playing well, the game isn't as much fun. When that happens I tell myself just to go out and play as I did when I was a kid.