 The number of Jews who have won the Nobel Prize? One fourth of all Nobel Prizes in science have been won by Jews. How many Muslims in the world? 1.3 billion. How many Jews in the world? 15 million tops. So you look at what effect the culture of discovery and learning can have on what you discover about the natural world, it's extraordinary. So just because you're making discoveries doesn't mean it's forever. And I look at the 20th century in America as a period of great discovery.