"...in my heart I know you didn't come here just for me, you came here because you believe in what this country can be. In the face of war, you believe there can be peace. In the face of despair, you believe there can be hope. In the face of a politics that's shut you out, that's told you to settle, that's divided us for too long, you believe we can be one people, reaching for what's possible, building that more perfect union."
It's like the West Wing, but in real life!
the full text of the speech is here.