You entertain people who are satisfied. Hungry people can't be entertained - or people who are afraid. You can't entertain a man who has no food.

Constant development is the law of life, and a man who always tries to maintain his dogmas in order to appear consistent drives himself into a false position.

In Art, man reveals himself and not his objects.

The great defense against the air menace is to attack the enemy's aircraft as near as possible to their point of departure. 

I cannot discover that anyone knows enough to say definitely what is and what is not possible. 

One thing I want to make clear, as far as my own rebirth is concerned, the final authority is myself and no one else, and obviously not China's Communists.

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.

Many people mistake our work for our vocation. Our vocation is the love of Jesus.

Some appointments end up in disappointment.

 सच्‍चा धर्म वही है जो स्‍वतंत्रता को परम मूल्‍य की तरह स्‍थापित करे।

I have just got a new theory of eternity.

A lie gets halfway around the world before the truth has a chance to get its pants on.