"I engage in public debates, but I've never approached them like a high school exercise where one is committed to not changing one's view. I don't want to be wrong for a moment longer than I need to be. If my opponent is right about something, and I can see that, I will be very quick to admit it."
"A lot of people think that failure is a step backward. No, no, no. Failure is a step forward; a step forward in the right direction. Every time you fail you learn something from it, you gain something from it. You feel less anxiety when you're doing it again. You want to think that's a step backward? That's progress in every sense of the word."