Ol' man river, dat ol' man river,
He must know sumpin', but don't say nothin',
He just keeps rollin', he keeps on rollin' along.
Source: From the musical Show Boat., Ol' Man River.
-- Oscar Hammerstein, (Jul 12 1895-1960), US lyricist, musical comedy author; He was influential in the development of musical comedy; known especially for his collaboration with the composer Richard Rodgers.