President Obama, March 7th, 2015, Selma, Alabama.

And that’s what the young people here today and listening all across the country must take away from this day. You are America. Unconstrained by habits and convention. Unencumbered by what is, and ready to seize what ought to be. For everywhere in this country, there are first steps to be taken, and new ground to cover, and bridges to be crossed. And it is you, the young and fearless at heart, the most diverse and educated generation in our history, who the nation is waiting to follow.

Because Selma shows us that America is not the project of any one person.

Because the single most powerful word in our democracy is the word “We.” We The People. We Shall Overcome. Yes We Can. It is owned by no one. It belongs to everyone. Oh, what a glorious task we are given, to continually try to improve this great nation of ours.

Conclusion of President Obama's Bloody Sunday Speech - Google Slides