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

I've said multiple times that the world's first trillionaire is going to be the person who exploits the resources of asteroids, the natural resources that are rare on earth and common on selected asteroids. So there are many different reasons you might want to go into space. You might want to spend your honeymoon on the far side of the moon.

Society needs to see science not as a luxury of funding but as a fundamental activity that drives enlightenment, economics, and security.

Science is a way of equipping yourself with the tools to interpret what happens in front of you.

There are photons that have been traveling for 30,000 years, and I'm... snatching them from this journey and planting them into my digital detector. And then I started feeling bad for the photon, and I said maybe it wanted to continue but I got in its way. But then I said, no, those are probably happier photons than the one that slammed into the mountainside that will go unanalyzed and will not contribute to the depth of our understanding of the universe.

The greatest of people that have ever been in society, they were never versions of someone else. They were themselves.

The worst thing that ever happened to America was the 19th Amendment.