As the wealthiest nation on Earth, I believe the United States has a moral obligation to lead the fight against hunger and malnutrition, and to partner with others.

Today’s decision was a victory for people all across this country whose lives will be more secure.

To break our addiction to oil is one of the greatest challenges that our generation will have to master.

Angela [Merkel] and I also agreed the need for a comprehensive and humane response to the devastating humanitarian crisis in Syria and for the influx of migrants and refugees from around the world. We need to build on the progress achieved at the U.N. Refugee Summit, which yielded new commitments from some 50 nations and organizations.

When you take on the position of president, you are committing yourself to, first and foremost, protecting the American people. You are accepting an institutional role that requires you to make hard decisions and hard choices, and as a consequence you have to take your moral sense and not put it aside.

Going back to the discussion we were having about immigration reform, some of the most challenging discussions I've had are with activists who essentially would argue that any immigrant from Central America, let's say, who gets here to this country should be allowed to stay because their country is dangerous, their country is poor, and the opportunities for that mom and that kid are much greater here, and why would you send them back?

And I do not want, and I will not accept, a deal in which I am asked to do nothing, in fact, I'm able to keep hundreds of thousands of dollars in additional income that I don't need, while a parent out there who is struggling to figure out how to send their kid to college suddenly finds that they've got a couple thousand dollars less in grants or student loans.