The good and the bad news is that politicians rarely do what they say they are going to do when they campaign.

A market system is not a profit system, it's a profit-and-loss system.

I've devoted most of my life to understanding the principles that enable people to improve their lives. It's those principles, the principles of free society, that have shaped my life, my family, our company, and America.

So to the best we can, what we do is focus on creating value for others, and how do we do that? We do it by trying to produce products and services that our customers will value more than their alternatives, and not just their alternatives today, but what the alternatives will be in the future. We try to more efficiently use resources than our competitors, and constantly improve in that, and we try to do the best job we can in creating a safe environment, and environmental excellence, and constantly improve at that.

Everything I give, pretty much, is public. Not every donor wants to - or is willing to get the kind of abuse and attacks that we do, or death threats, so they're not willing to have their names out. I think the other side is pushing for that because they want to intimidate people so they won't oppose it.

I love to try to understand first principles and be guided by that. But then, enrich them, because they won't last forever, just like everybody thought Newton had all the answers. And you probably read that, in the last of the 19th century, Harvard and others were discouraging people from going into physics because we have all the answers. And right after that, of course - we have - all this stuff is thrown out the window. And now we have whole new answers.

Years later, when I asked my father, I said 'Pop, why were you so much harder on me than my younger brothers?' he said, son, you plum wore me out.