The biggest thing I learned from losing? Winning's better.

If there is a God, he is not doing a good job of protecting the earth. He's kind of checked out.

The U.N. had such lofty goals to eliminate poverty and stop war and cure diseases and help refugees - things that no one country could do.

If I sold all my liabilities, I wouldn't own anything. My wife's a liability, my kids are liabilities, and I haven't sold them.

The world and life have been mighty good to me. And I want to put something back.

The next most dangerous thing [after nuclear proliferation] is probably... global warming, and then, right behind that are overpopulation -- we need to get serious about family planning-and trying to alleviate poverty, to get clean, renewable energy, probably with solar panels to the billion and a half people in the world who don't have access to electricity.

There is no greater legacy that we can leave our children and grandchildren than a peaceful and safer world.