Understanding physics is child's play when compared to understanding child's play.

What I seek to accomplish is simply to serve with my feeble capacity truth and justice, at the risk of pleasing no one.

Knowledge exists in two forms - lifeless, stored in books, and alive, in the consciousness of men. The second form of existence is after all the essential one; the first, indispensable as it may be, occupies only an inferior position.

It's not that life has been easy, perfect or exactly as expected. I just choose to be happy and grateful no matter how it all turns out. If people are good only because they fear punishment, and hope for reward, then we are a sorry lot indeed.

You believe in a God who plays dice, I in complete law and order.

Life is a Mystery, not a problem waiting to be solved.

Adversity introduces a man to himself.