We know hackers steal people's identities and infiltrate private e-mails. We know foreign countries and companies swipe our corporate secrets.

I think we've set the bar with respect to the notion that it is possible to provide health care for people. Now I know that the incoming Congress and administration talks about repealing it. But we've set a bar that shows that this can be done. And that core principle is one that the majority of Americans, including supporters of Donald Trump believe in.

The science [of global warming] is beyond dispute... Delay is no longer an option. Denial is no longer an acceptable response

I think it is important for Europe to understand that even though I am president and George Bush is not president, Al Qaeda is still a threat.

I think that whenever you have got an incoming president of the other side it takes a while for people to reconcile themselves with that new reality.

If you like your health care plan, you can keep your health care plan.

International inspectors are on the ground and Iran is being subjected to the most comprehensive, intrusive inspection regime ever negotiated to monitor a nuclear program. Inspectors will monitor Iran's key nuclear facilities 24 hours a day, 365 days a year. For decades to come, inspectors will have access to Iran's entire nuclear supply chain. In other words, if Iran tries to cheat - if they try to find build a bomb covertly, we will catch them.