I watched the piles of feces go up the conveyor belt... They made their way through the machine... A few minutes later I took a long taste of the end result: a glass of delicious drinking water.

Even in some of our vaccine areas, like an AIDS vaccine, things have taken longer than we expected, but we have the pipeline of tools. The biological information that we have that gives us insights is fantastic.

Climate change is a terrible problem, and it absolutely needs to be solved. It deserves to be a huge priority.

Teaching's hard! You need different skills: positive reinforcement, keeping students from getting bored, commanding their attention in a certain way.

I find golf very relaxing. It's a way to get away from work and get outside. It's a lot of fun, and once you get going it's almost kind of addictive.

The world at large is less inequitable today than at any time in history. Number of people in abject poverty, as a percentage, is at all-time low.

Good programmers stay open minded to that even though there is no obvious way to improve what they've done they... they keep looking and they listen to what other people have to say.