The relativity principle in connection with the basic Maxwellian equations demands that the mass should be a direct measure of the energy contained in a body; light transfers mass. With radium there should be a noticeable diminution of mass. The idea is amusing and enticing; but whether the Almighty is laughing at it and is leading me up the garden path -- that I cannot know.

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

It is true that my parents were worried because I began to speak fairly late, so that they even consulted a doctor. I can't say how old I was - but surely not less than three.

The highest principles for our aspirations and judgments are given to us in the Jewish-Christian religious tradition.

I am content in my later years. I have kept my good humor and take neither myself nor the next person seriously.

If we trace out what we behold and experience through the language of logic, we are doing science; if we show it in forms whose interrelashionships are not accessible to our conscious thought but we are intuitively recognized as meaningful, we are doing art.

Nonsense, seems to sum up everything.