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.

Your most unhappy customers are your greatest source of learning.

Don't wallow in failure. Instead, learn from it.

My dream is that every child has enough food to eat, good medical care, and the chance to go to school and even attend college.

I'm an investor in a number of biotech companies, partly because of my incredible enthusiasm for the great innovations they will bring.

The part of uranium that's fissile - when you hit it with a neutron, it splits in two - is about 0.7%. The reactors we have today are burning that 0.7%.

Now, we put out a lot of carbon dioxide every year, over 26 billion tons. For each American, it's about 20 tons. For people in poor countries, it's less than one ton. It's an average of about five tons for everyone on the planet. And, somehow, we have to make changes that will bring that down to zero.