A pamphlet, no matter how good, is never read more than once, but a song is learned by heart and repeated over and over. And I maintain that if a person can put a few common sense facts into a song and dress them up in a cloak of humor, he will succeed in reaching a great number of workers who are too unintelligent or too indifferent to read.
Joe Hill - Letter to the editor of Solidarity (via liberationfrequency)