For the future, I would suggest avoiding subjects of too vast a scale. It would be useful to make out a list of fundamental questions on the matter to be dealt with, and discuss only those.
“I played football in high school, I played baseball when I was younger, things like that, but I think it was the passion I had for track where you want to do an individual sport and be the best, I think - there's nothing that can replace that.”
“The American economy has always been the innovator in the world, and we're starting to see some tremendous increases in innovation, especially in the clean energy sector.”