I feel that I've often pointed out that there are countless aspects of life and nature that scientists and scientific thinkers cannot explain. Why the universe is accelerating in its expansion and what came before the Big Bang serve as compelling examples. The process of science provides a way to seek answers to those questions.

We should educate more women and girls. Because that is the surest route to controllably, manageably reducing the human population. Educated women have fewer kids. And the kids they do have are better cared for and are more successful. As I like to say, it's not one thing that we need to focus on. It's everything all at once.

There really is no such thing as race.

The meaning of life is pretty clear: Living things strive to pass their genes into the future. The claim that we would not have morals or ethics without religion is extraordinary. Animals in nature seem to behave in moral ways without organized religion.

If NASA is to reach beyond the Moon and someday reach Mars, it must be relieved of the burden of launching people and cargo to low earth orbit. To do that, we must invest more in commercial spaceflight.

It is my mission to change the world. I'm not kidding: Make no small plans, dream mighty things. I feel if we get enough people engaged in climate change, we will get enough people to change the world. We will revolutionize the way we produce electricity and provide clean water to people.

I always liked show biz and got to make a few training films at Boeing.