If there is something very slightly wrong in our definition of the theories, then the full mathematical rigor may convert these errors into ridiculous conclusions.

An ordinary fool isn't a faker; an honest fool is all right. But a dishonest fool is terrible!

I would rather have questions that can't be answered than answers that can't be questioned.

All we know so far is what doesn't work.

But there is nothing in biology yet found that indicates the inevitability of death.

The first principle is that you must not fool yourself and you are the easiest person to fool.

There is one simplification at least. Electrons behave ... in exactly the same way as photons; they are both screwy, but in exactly in the same way.