"And so even though we face the difficulties of today and tomorrow, I still have a dream. It is a dream deeply rooted in the American dream. I have a dream that one day this nation will rise up and live out the true meaning of its creed: 'We hold these truths to be self-evident, that all men are created equal.'" (From the "I Have a Dream" speech, delivered August 28, 1963)
The title quote from the "I've Been to the Mountaintop" speech, delivered April 3rd, 1968.