It is strange to be known so universally and yet to be so lonely.

It's not that I'm so smart, it's just that I stay with problems longer.

No amount of experimentation can ever prove me right; a single experiment can prove me wrong.

You ask me if I keep a notebook to record my great ideas. I've only ever had one.

Isn't it strange that I who have written only unpopular books should be such a popular fellow?

A question that sometimes drives me hazy: am I or are the others crazy?