When I look at the human brain I'm still in awe of it.

I feel very blessed to have been involved with some of the most complex surgical procedures in the history of the world.

No matter how good you are at planning, the pressure never goes away. So I don't fight it. I feed off it. I turn pressure into motivation to do my best.

We should use our economic power in lots of different ways. I think we can use that in order to keep [Vladimir] Putin contained, because he is a one-horse show. Energy. And we have an abundance of energy, but we have archaic energy exportation rules. We need to get rid of those, allow ourselves to really make Europe dependent on us and other parts of the world dependent on us for energy. Put him back in his little box where he belongs.

When I entered high school I was an A-student, but not for long. I wanted the fancy clothes. I wanted to hang out with the guys. I went from being an A-student to a B-student to a C-student, but I didn't care. I was getting the high fives and the low fives and the pats on the back. I was cool.

We need to be willing to stand up and speak up for what we believe.

I think people actually notice sometimes the content of what one is saying rather than the decibel level at which he says it. And a lot of times when people don't have a lot to say, they increase the volume.