I'm sort of in this rhythm where we want to make the most of the time we have, but when it's done it will be time for it to be done.

It is manifestly in the interest of the United States to deal with the very real threat that climate change poses. And that's why President Obama has worked so hard to reduce our own emissions and to lead internationally in forging the Paris climate agreement.

Thirty years ago, about 80% of a company's assets resided in its plant and equipment, with 20% in the knowledge of its people. Today, the reverse is true. The knowledge of our staff is our principal asset

I have to separate my personal concerns from my professional responsibilities.

In this day and age, the U.S. and Europe do not have the luxury of focusing solely on a single region.

I don't worry about how folks want to characterize me.

Since I've had a career, my hair has been more or less professional.