It's not natural to have to suffer when we work. We're made to be productive, and yet the world we live in, there's a whole bunch of suffering. And what they need to understand as 10-year-olds, so that when they're 15 and slightly less protected, and when they're 20 and they're moving into a truly semi-independent state, they need to have experienced that memory of persevering and having gotten through hardship.

Once we affirm the goal of trying to make sure that you don't have jihadis infiltrating terrorist flows, we need to make sure we're doing it in a thoughtful way that's thinking about the 10 and 15 and 20 years long battle we're going to have against jihadists.

We obviously have to honor the commitments that have been made to the people who are already retired or near the retirement age. But we need to tell the truth about the fact that when we set the retirement age at age 65 in America, life expectancy was only 62.

Let's be clear: Has the U.S. ever made any mistakes? Of course.Is the U.S. at all like [Vladimir] Putin's regime? Not at all.

I don't understand what the president's [Donald Trump] position is on Russia. But I can tell you what my position is on Russia: Russia is a great danger to a lot of its neighbors, and [Vladimir] Putin has as one of his core objectives fracturing NATO, which is one of the greatest military alliances in the history of the world.

[Vladimir] Putin is an enemy of political dissent. The U.S. celebrates political dissent and the right for people to argue free from violence about places where our ideas are in conflict.

I didn't go to Harvard because I thought they had good academics. I went because they had crappy enough sports so they'd let me play.