640K ought to be enough for anyone.

People often overestimate what will happen in the next two years and underestimate what will happen in ten.

The way to do big, unique things is to focus on those things and pursue them.

In business, the idea of measuring what you are doing, picking the measurements that count like customer satisfaction and performance … you thrive on that.

It’s possible, you can never know, that the universe exists only for me. If so, it’s sure going well for me, I must admit.

The nuclear approach I'm involved in is called a traveling-wave reactor, which uses waste uranium for fuel. There's a lot of things that have to go right for that dream to come true - many decades of building demo plants, proving the economics are right. But if it does, you could have cheaper energy with no CO2 emissions.

For Africa to move forward, you've really got to get rid of malaria.

Eradications are special. Zero is a magic number. You either do what it takes to get to zero and you're glad you did it; or you get close, give up and it goes back to where it was before, in which case you wasted all that credibility, activity, money that could have been applied to other things.

The malaria parasite has been killing children and sapping the strength of whole populations for tens of thousands of years. It is impossible to calculate the harm malaria has done to the world.

The U.S. immigration laws are bad - really, really bad. I'd say treatment of immigrants is one of the greatest injustices done in our government's name.