I love this quote too, and I reference it often in these types of discussions. If your plan for revolution requires everyone to read a master's degree worth of leftist writing, it doesn't have any hope (or precedence). Propaganda is what works on the masses, not dusty tomes of theory. I think music is a great medium for spreading the message. I know it's very dated, but I've actually made headway raising class consciousness with the music of Woody Guthrie. YMMV.