Everything we do understand about the universe - the periodic table of elements, Einstein's laws, Newton's laws, all of chemistry, all of biology - that's 4 percent of the universe. We got to the moon on the 4 percent we do understand. We landed on Mars on the 4 percent we do understand. So the day we crack the nut of the rest of that 95 percent... Oh my gosh.

Computers have proved to be formidable chess players. In fact, they've beaten our top human chess champions.

When you visit countries that don't nurture these kinds of ambitions, you can feel th absence of hope...people are reduced to worrying only about that day's shelter or the next day's meal. It's a shame, even a tragedy, how many people do not get to think about the future. Technology coupled with wise leadership not only solves these problems but enables dreams of tomorow.

Scientific literacy is an intellectual vaccine against the claims of charlatans who would exploit ignorance.

If the only time you think of me as a scientist is during Black History Month, then I must not be doing my job as a scientist.

The good thing about science is that it's true whether or not you believe in it.

Need a distraction today? Not only does 12 + 1 = 11 + 2, but the letters "twelve plus one" rearrange to give you "eleven plus two."