The central fact for me is, I think, that the [role of the] intellectual... cannot be played without a sense of being someone whose place it is publicly to raise embarrassing questions, to confront orthodoxy and dogma (rather than to produce them), to be someone who cannot easily be co-opted by governments or corporations, and whose raison d'etre is to represent all those people and issues that are routinely forgotten or swept under the rug.
"Representation of the Intellectual". Book by Edward Said, 1994.