The Guardian ran an extended profile of Pierre Boulez over the weekend, and Boulez fired off a few of his trademarked spiky observations. (Via) The most hard-line is probably this one about audiences:
"20 per cent are very interested in new things, 50 per cent can be persuaded and 30 per cent are in their coffins before their time."
Also up in there is a reference to Mick Jagger and the Rolling Stones as emblematic of popular culture. Someone will assume that Boulez is out of touch by making such a remark...until you account for the fact that the Rolling Stones brought in $139 million on their last tour. That's emblematic of something.