Don't worry about anything. Go out and have a good time.

As usual, nature's imagination far surpasses our own, as we have seen from the other theories which are subtle and deep.

It is odd, but on the infrequent occasions when I have been called upon in a formal place to play the bongo drums, the introducer never seems to find it necessary to mention that I also do theoretical physics.

My friends and I had taken dancing lessons, although none of us would ever admit it. In those depression days, a friend of my mother was trying to make a living by teaching dancing in the evening, in an upstairs dance studio. There was a back door to the place, and she arranged it so the young men could come up through the back way without being seen.

I wonder why. I wonder why. I wonder why I wonder.

There is no harm in doubt and skepticism, for it is through these that new discoveries are made.

I learned very early the difference between knowing the name of something and knowing something.