Maybe you could be a great writer - maybe even good enough to write a book or articles in a newspaper - but you might not know it until you write that English paper - that English class paper that's assigned to you.

What I believe unites the people of this nation, regardless of race or region or party, young or old, rich or poor, is the simple, profound belief in opportunity for all - the notion that if you work hard and take responsibility, you can get ahead.

Israel has legitimate concerns about its security relative to Iran. I mean, you have a large country with a significant military that has proclaimed that Israel shouldn't exist, that has denied the Holocaust, that has financed Hezbollah, and as a consequence, there are missiles that are pointed towards Tel Aviv. There are very good reasons why Israelis are nervous about Iran's position in the world generally.

Rather than pointing fingers or assigning blame, let’s use this occasion to expand our moral imaginations, to listen to each other more carefully, to sharpen our instincts for empathy and remind ourselves of all the ways that our hopes and dreams are bound together.

As president of the United States, I don't bluff.

Our intelligence communities spend a lot of time and effort gathering a lot of strands and a lot of data [on Russian hacking]. There are times where they're very cautious and they say, "We think this is what happened, but we're not certain."

Young people recognize the big challenges that are coming up.