“I just worry a lot. I'm a worrier. Michelle and Barack are really dear to me. I mean, I love them. And I don't want to see them get hurt. Just the nature of politics is hurtful. So every time they are hurt, I get hurt. It's a lot to ask of people, and it's a lot to see your friends go through. It's ”

“Not all chemicals are bad. Without chemicals such as hydrogen and oxygen, for example, there would be no way to make water, a vital ingredient in beer.”