It's going to cost trillions of dollars to rework the energy sources all over the world. Were going to have to move away from fossil fuels.

I had more energy at 50. On the other hand, at 75, I've probably got a little more wisdom and good judgment than I had at 50 because I've got more experience. But I haven't really changed. I'm still driven by the same philosophy.

The happiest people are those who are contributing to society.

We have to do more than keep media giants from growing larger; they're already too big. We need a new set of rules that will break these huge companies to pieces.

I haven't been in a store to buy anything for five years.

I'm sure God, wherever he is, wants to see us get along with one another and love one another.

The chance for mistakes is about equal to the number of crew squared.