It was really phenomenal [Warren Buffett donation]. It grew out of the friendship that we had and the fact that his plan to have his wife run the foundation and give things away changed when she tragically died.

There will be two types of businesses in the next 5 years, those that are on the Internet, and those that are out of business

We are seeing pioneers moving out to the Internet, banks that are taking transactions, retail shopping on the Internet, and although it's going to take most of a decade before most adults are turning to the Internet for a high percentage of their act

We’re no longer in the days where every program is super well crafted. But at the heart of the programs that make it to the top, you’ll find that the key internal code was done by a few people who really knew what they were doing.

Don't let complexity stop you.

Melinda [Gates] has been my partner in raising the kids and I went from before I met her, intentionally having an unbalanced life, to having a more balanced life with all sorts of fun things that she and I do together.

Bangladesh is largely a river delta, and the rising sea level means that when storms come in, the human sanitation is backing up, the ability to farm.