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The most exciting moments in mathematics are when you discover something that was hidden in plain sight.
The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all. And that, of course, causes great confusion.
"The world is full of obvious things which nobody by any chance ever observes."
To become truly great, one has to stand with people, not above them.
The only thing worse than being talked about is not being talked about.