This is a must-see. He had me in tears:

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Some excerpts from President Obama’s remarks:

And then, in an instant, the day’s beauty was shattered. A celebration became a tragedy. And so we come together to pray, and mourn, and measure our loss. But we also come together today to reclaim that state of grace — to reaffirm that the spirit of this city is undaunted, and the spirit of this country shall remain undimmed.

I’m here today on behalf of the American people with a simple message: Every one of us has been touched by this attack on your beloved city. Every one of us stands with you.

Like you, Michelle and I have walked these streets. Like you, we know these neighborhoods. And like you, in this moment of grief, we join you in saying — “Boston, you’re my home.” For millions of us, what happened on Monday is personal. It’s personal.

And our hearts are broken for 8-year-old Martin — with his big smile and bright eyes. His last hours were as perfect as an 8-year-old boy could hope for — with his family, eating ice cream at a sporting event. And we’re left with two enduring images of this little boy — forever smiling for his beloved Bruins, and forever expressing a wish he made on a blue poster board: “No more hurting people. Peace.”

No more hurting people. Peace.

As you begin this long journey of recovery, your city is with you. Your commonwealth is with you. Your country is with you. We will all be with you as you learn to stand and walk and, yes, run again. Of that I have no doubt. You will run again.

It should be pretty clear by now that they picked the wrong city to do it. Not here in Boston. Not here in Boston.

Yes, we will find you. And, yes, you will face justice. We will find you. We will hold you accountable. But more than that; our fidelity to our way of life — to our free and open society — will only grow stronger. 

This doesn’t stop us.

And that’s what you’ve taught us, Boston. That’s what you’ve reminded us — to push on. To persevere. To not grow weary. To not get faint. Even when it hurts. Even when our heart aches. We summon the strength that maybe we didn’t even know we had, and we carry on. We finish the race.  We finish the race.

… [J]ust when we think that we’ve hit a wall, someone will be there to cheer us on and pick us up if we fall. We know that. (Applause.)

And that’s what the perpetrators of such senseless violence — these small, stunted individuals who would destroy instead of build, and think somehow that makes them important — that’s what they don’t understand. Our faith in each other, our love for each other, our love for country, our common creed that cuts across whatever superficial differences there may be — that is our power. That’s our strength.

And this time next year, on the third Monday in April, the world will return to this great American city to run harder than ever, and to cheer even louder, for the 118th Boston Marathon. Bet on it.