After the Berlin Wall came down I visited that city and I will never forget it. The abandoned checkpoints. The sense of excitement about the future. The knowledge that a great continent was coming together. Healing those wounds of our history is the central story of the European Union.

You don't have to be a brilliant historian to know that in Europe, messing with countries' borders, messing with their self-determination, their ability to choose their own futures, this is extremely dangerous, and that's why I think it is important to stand up to Putin.

I think the country requires fresh leadership. I do not think I can be the captain to take the country to its next destination.

Yes, America must do the right thing, but to provide moral leadership, America must do it in the right way, too.

I would like to have the superpower of being able to touch a book and then gain all the knowledge out of that book without spending hours and days reading it.

My mother wanted me to be a teacher. She had this vision of me walking across the quadrangle in an Oxford college wearing my academic gown.

I went into the military because I wanted to get an education, not because I wanted to fight anybody.

Technology is changing so fast that knowledge about specifics can quickly become obsolete. That's why so much of what technicians learn is on the job.