We have got to dispel this myth that bullying is just a normal rite of passage.

I'm no longer just a candidate. I'm the President. I know what it means to send young Americans into battle, for I have held in my arms the mothers and fathers of those who didn't return. I've shared the pain of families who've lost their homes, and the frustration of workers who've lost their jobs.

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.

The brain is a body part too; we just know less about it.

Mandela's commitment to democracy was ratified not only by his election, but by his willingness to step down from power

How we think about terrorism has to be defined and specific enough that it doesn't lead us to think that any horrible actions that take place around the world that are motivated in part by an extremist Islamic ideology is a direct threat to us or something that we have to wade into.

I find it amusing that those who helped to authorize and engineer the biggest foreign policy disaster in our generation are now criticizing me for making sure that we are on the right battlefield and not the wrong battlefield in the war against terrorism.