Lee Professor of English Cedric Gael Bryant delivered the keynote address at Waterville’s 22nd annual Martin Luther King Jr. breakfast. He took a line from Langston Hughes — “Ain’t Been No Crystal Stair” — as his title. “It may be a little early in the morning for poetry, but this is what comes of inviting an English professor to breakfast,” he said, before his talk about keeping Dr. King’s dream alive.