There's about 100 different cancers in a cancer cell. And so what we're finding out is, they're finding out ways to deal with one or two of the cancers there, with certain medicines. But they don't know why, if you have that cancer and I have that cancer, and I get the therapy and you get it, I don't live and you live. That - they don't know why.

During the 60's, I was, in fact, very concerned about the civil rights movement.

We are Boston. We are America. We respond. We endure. We overcome. And we own the finish line.

Presumptuous for me to say, but at least - at a minimum - I've been able to influence the direction of the Democratic Party on foreign policy. And I've been relatively - presumptuous to say - relatively successful legislatively in the Senate, being able to win a lot of Republican friends, and being able to cross the aisle.

I would be surprised if Donald Trump got elected.

I mean, you got the first mainstream African-American who is articulate and bright and clean and a nice-looking guy. I mean, that's a storybook, man.

We misread the Fifth Amendment [of Constitution] and have been misreading it for the past three decades.