The mind of the polyglot is a very particular thing, and scientists are only beginning to look closely at how acquiring a second language influences learning, behavior and the very structure of the brain itself.

We are all born with an innate understanding of interpersonal equity - the idea that if you lend me your rake today, I'll respond in kind when you come to borrow my shovel tomorrow. Or nearly all of us are born with that. Psychopaths aren't.

There are a lot of obstacles in the way of our understanding animal intelligence - not the least being that we can't even agree whether nonhuman species are conscious. We accept that chimps and dolphins experience awareness; we like to think dogs and cats do. But what about mice and newts? What about a fly? Is anything going on there at all?

Learning to speak was the most remarkable thing you ever did.

I'm the only one in America who belongs to the 'Cure Cancer' party, so if you give money to cancer, like Harry Reid and Max Baucus, some of these guys really helped us raise big money for cancer, I give them big money for their reelections.

When my husband turned 40, I was obsessed. 'Has he had his medical checkup?' He needed to go to the doctor; he needed to go to the dentist. Any little cough, I was really on him. Then he turned 40, and I thought, 'Maybe that's why I've been so obsessed with his health!'

Coal is absolutely critical to our nation's economic health and global competitiveness.

Let's face it, in America today we don't have a health care system, we have a sick care system.