In fact, what I usually say to people, “Probably some of the most successful scientists are the ones that know how to deal with failure well.” Because it’s easy to feel good when you succeed. That’s an easy thing. But you’re probably going to fail in science a lot more than you succeed, so you really have to learn how to deal with it and not let it beat you.

We have failed seven times up at bat, and we strike out, and I think, "How can I learn from that failure? What went wrong? What could I have done differently?" You have to take it apart to understand your failures. Failures teach you much more than your successes. Sometimes it is better just to pause on a setback, on a failure, on a screw-up, and say, "What did I learn from this?" You learn how to do it better and you recommit yourself.

Day one of my first job out of college, my boss found out that I didn't know how to enter data into Lotus 1-2-3. That's a spreadsheet—ask your parents. His mouth dropped open and he said, ‘I can't believe you got this job without knowing that”—and then walked out of the room. I went home convinced that I was going to be fired. I thought I was terrible at everything… but it turns out I was only terrible at spreadsheets.

Working at the hospital, I found that my surgical skills were not as good as I expected. One time it took me two hours to do a surgical operation which could have been completed in 30 minutes by other surgeons. My supervisors were very tough on new residents like me, and I lost confidence in my ability.

Peace is not unity in similarity but unity in diversity, in the comparison and conciliation of differences.

I have been suspected of utopian thinking more than once, and particularly when five years ago I proposed the elimination of nuclear weapons by the year 2000 and joint efforts to create a system of international security. It may well be that by that date it will not have happened. But look, merely five years have passed and have we not actually and noticeably moved in that direction?