"That's the promise of tomorrow—that in the face of impossible odds, people who love their country can change it. That when millions of Americans of every race and every region, every faith and every station, can join together in a spirit of brotherhood, then those mountains will be made low, and those rough places will be made plain, and those crooked places, they straighten out towards grace, and we will vindicate the faith of those who sacrificed so much and live up to the true meaning of our creed, as one nation, under God, indivisible, with liberty and justice for all."  —President Obama two years ago today celebrating a half-century since the March on Washington. To mark the 52nd anniversary, read the President's remarks on a half-century of progress on civil rights and the work still ahead: https://webarchive.library.unt.edu/web/20170206234310/http://go.wh.gov/3yqEvS