Prediction is difficult, especially the future.

Anybody who is not shocked by this subject has failed to understand it. [of quantum mechanics]

Nothing exists until it is measured.

The measurement we get when we measure something is not a property of the thing measured.

If we couldn't laugh at ourselves, that would be the end of everything.

A person who wasn't outraged on first hearing about quantum theory didn't understand what had been said.

Predictions are hard, especially abot the future.