There are always things that I think I wish I could have done better.

If you think that we've overregulated in the environmental space what I can show you is that we have tripled the amount of wind power in this country, increased by tenfold the amount of solar power. We are producing as much oil and gas as we've ever produced.

The only resolution is for the aspirations of both sides to be met through two states, where Israelis and Palestinians each live in peace and security. ... Israelis must acknowledge that just as Israel's right to exist cannot be denied, neither can Palestine's. The United States does not accept the legitimacy of continued Israeli settlements.

If you were successful, somebody along the line gave you some help... Somebody helped to create this unbelievable American system that we have that allowed you to thrive. Somebody invested in roads and bridges. If you’ve got a business - you didn’t build that. Somebody else made that happen.

One of the hardest things in politics is to convince people to do things now that will have a good effect 20 or 30 years from now because politicians tend to have a short-term view. They are more attentive to things that people care about today.

I think it's very important to remember that so much of the work that gets done between countries is not done at the level of presidents, but is done within various agencies, whether it's law enforcement or economic ministries. And when they establish relationships and systems of communications and shared projects and shared visions, those structures continue even after any particular president is gone. It builds trust and understanding between countries that are critically important.

While the future is unknowable, the winds always blow in the direction of human progress.