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.

What are the relationships between power and knowledge? There are two bad, short answers: 1. Knowledge provides an instrument that those in power can wield for their own ends. 2. A new body of knowledge brings into being a new class of people or institutions that can exercise a new kind of power.

I spent 28 years working in healthcare. I thought I'd retired from non-profit community health care.

And I believe that the best buy in public health today must be a combination of regular physical exercise and a healthy diet.

What is called genius is the abundance of life and health.