In his later years, Dixon became a tireless ambassador for the blues and a vocal advocate for its practitioners, founding the Blues Heaven Foundation, which works to preserve the legacy of the blues and to secure copyrights and royalties for blues musicians who were exploited in the past. Speaking with the simple eloquence that was a hallmark of his songs, Dixon claimed, "The blues are the roots and the other musics are the fruits. It's better keeping the roots alive, because it means better fruits from now on. The blues are the roots of all American music. As long as American music survives, so will the blues."