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.

A classical liberal is someone who wants a society that maximizes peace, civility, tolerance, and well-being for everyone. One that opens opportunities for everyone to advance themselves.

Just Donald Trump's tenor and insulting of people is just beyond the pale.

If people don't learn to work by the time they're in their 30s, they're never very productive.

Our vision controls the way we think and, therefore, the way we act the vision we have of our jobs determines what we do and the opportunities we see or don't see.

I don't have all the answers. I have a lot of questions. And I have some basic principles.

I want my legacy to be greater freedom, greater prosperity and a better way of life for my family, our employees and all Americans. And I wish the same for every nation on earth.