We are seeing smarter philanthropy, more philanthropy, and that's true world wide. So it's kind of a movement that has a lot of accomplishments, even though as a percentage of the economy, it's still only a few per cent.

In almost every area of human endeavor, the practice improves over time. That hasn't been the case for teaching.

The vision is really about empowering workers, giving them all the

My innovation message, specifically including energy, happened to be the same week that on Monday and Tuesday I announced the Breakthrough Energy Venture Group. Then on that Tuesday afternoon, in December, was when I sat down with him. I explained the US has great science here, this is where the market for these things is going to be. It connects to less pollution, it connects to U.S. jobs, it connects to security, not needing the energy coming from far away.

Contraception really shouldn't be all that controversial because it's a tool a woman can use to delay her first birth until she's, say, 18 or 19 years old.

I have this very positive view of the world getting better and better. The list of things that could be huge setbacks is not very long: A nuclear war, climate change and epidemics.

Effective philanthropy requires a lot of time and creativity - the same kind of focus and skills that building a business requires.