We are going through historic times, and my vision is a world, first of all, in which America continues to be that one indispensable nation. Because we're taking care of our own people, because our economy is strong and our middle class is growing, and people feel like hard work is rewarded, and we are continuing to expand opportunity and diversity and tolerance and respect.

Let's face it, I like Stanford grads. I'd always hear about this campus, and everybody is riding bikes, and people hopping into fountains.

America must always lead on the world stage. If we don't, no one else will. The military that you have joined is, and always will be, the backbone of that leadership. But U.S. military action cannot be the only - or even primary - component of our leadership in every instance. Just because we have the best hammer does not mean that every problem is a nail.

Cool, logical, big-eared and level-headed, the center of Star Trek's optimistic, inclusive vision of humanity's future. I loved Spock.

Some people in D.C. talk about me like a dog.

If we choose to keep those tax breaks for millionaires and billionaires, if we choose to keep a tax break for corporate jet owners, if we choose to keep tax breaks for oil and gas companies that are making hundreds of billions of dollars, then that means we've got to cut some kids off from getting a college scholarship.

That sort of lack of awareness on the part of an activist about the constraints of our political system and the constraints on this office, I think, sometimes would leave me to mutter under my breath. Very rarely did I lose it publicly. Yeah, usually I'd just smile.