I don't have a problem with a woman being president; I just want the best candidate.

We're America, and we have to stop worrying about what happens overseas, and to be optimistic, even though nobody should think we're not going to have some difficult times.

Nobody wants a job where they don't have authority to go along with the responsibility. Quite the contrary. The more authority you give people, the better people you can attract, and the harder they're going to work, and the more loyal they are going to be.

Don't be afraid to assert yourself, have confidence in your abilities and don't let the bastards get you down.

You have to understand, we have better communications and better transportation, so people know what's available elsewhere and can get a message out, and you can move things. And you [can] say that the economy is more unpredictable.

Fighting climate change isn't just an obligation we owe to future generations. It's also an opportunity to improve public health - and drive economic growth - in the here and now.

I'm worried about the world because of nuclear proliferation.