Running helps me stay on an even keel and in an optimistic frame of mind.

Presidents are not permitted to have personal feelings.

It's only in America where there seems to be this sort of systematic denial of the reality of global warming at the governmental level, and in too many sectors of the high, the private sector. But it looks to me the business community may actually lead us toward a clean energy future almost in spite of government policy.

Cooperation will save the future. And America should lead it. Every time humanity has been in danger of extinguishing itself, our consciousness and our conscience have led us to come together. That's the big issue of the 21st century.

I'm just trying to suppress my natural impulses and get back to work.

Golf is like life in a lot of ways - All the biggest wounds are self-inflicted.

If you believe in a security strategy - a strategy of more friends and fewer enemies, a strategy of greater cooperation and a strategy of keeping America better at home as we grow more diverse - we have to build the minds and hearts to build this kind of world.