I think my most important advice is to understand what are the foundations of a healthy democracy and how we have to engage in citizenship continuously, not just when something upsets us; not just when there's an election or when an issue pops up for a few weeks. It's hard work.

But it will depend on young people like you being open to new ideas and new possibilities. And it will require young people like you never to stereotype or assume the worst about other people.

Iran is a state sponsor of terrorism. And for them to be able to provide nuclear technology to non-state actors, that's unacceptable.

There are few things in life that are harder to find and more important to keep than love. Well, love and a birth certificate.

We need to reduce our dependence on foreign oil by ending the subsidies for oil companies, and doubling down on clean energy that generates jobs and strengthens our security.

I stand here today humbled by the task before us, grateful for the trust you have bestowed, mindful of the sacrifices borne by our ancestors.

Boston is a tough and resilient town. So are its people. I'm supremely confident that Bostonians will pull together, take care of each other, and move forward as one proud city. And as they do, the American people will be with them every single step of the way.