"The whole material world. It doesn't actually exist. Matter is not material. It's made up of atoms that are moving at lightning speeds around huge empty spaces. So as you go beyond the appearance of molecules, you end up with a subatomic world, and if you go beyond that you end up with nothing. Nothing is the source of everything."

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After that cancellation [of the Superconducting Super Collider in Texas, after $2 billion had been spent on it], we physicists learned that we have to sing for our supper. ... The Cold War is over. You can't simply say "Russia!" to Congress, and they whip out their checkbook and say, "How much?" We have to tell the people why this atom-smasher is going to benefit their lives.

— Michio Kaku