Michelle, I love you. The other night, I think the entire country saw just how lucky I am. Malia and Sasha, you make me so proud…but don't get any ideas, you're still going to class tomorrow. And Joe Biden, thank you for being the best Vice President I could ever hope for.

You have social media and the Internet and immigration and so, suddenly, cultures are clashing and people feel as if they're less familiar with the people around them. That causes social anxieties.

I'm suspicious of too much certainty in the pursuit of understanding just because I think people are limited in their understanding.

I think it's fair to say that [Donald Trump] and I are sort of opposites in some ways.

Peace depends upon compromise among peoples who must live together long after our speeches are over, long after our votes have been tallied.

It still puts burden on some troops of ours who are there [in Afghanistan and Iraq] as advisors and facilitators.

We are greater than the sum of our individual ambitions