[Africa] is the one continent where you still have a lot more young people than old people. So making sure they're healthy, good nutrition, good education. That'll be important for the world.

Me and my dad are the biggest promoters of an estate tax in the US. It's not a popular position.

The willingness to hear hard truth is vital not only for CEOs of big corporations but also for anyone who loves the truth. Sometimes the truth sounds like bad news, but it is just what we need.

The key for us, number one, has always been hiring very smart people.

Understanding science and pushing the boundaries of science is what makes me immensely satisfied.

The job was to put into a, a computer with only 4K of memory an entire basic full blown, floating point Basic and that's one of the greatest programming feats I've ever had a chance to work on.

Take agriculture, where we haven't done much, or sanitation; saying, "okay, we will be able to make a really huge effort there." It really energized the foundation and half of what we've gotten done in this last decade is because Warren [Buffett] trusted us.