John Lewis writes for the Washington Post about Dr. King's vision and what it would be for America today:

Yes, we have come a great distance — but we still have a great distance to go. King’s speech was a cogent statement about the need for civil rights, but its deepest purpose was about much more. His dream was about more than racial justice, though racism often represents the greatest moral stain on our society. His dream was about building a society based on simple justice that values the dignity and the worth of every human being.