"As Marxists, we stress the need of bringing the mask for privilege and the mask for frustration into their proper relationship. In this way the ruling class can be shown to be exploiting those it frustrates by diverting their resentment onto a scapegoat who is innocent of frustrating them and whose sacrificial slaughter, therefore, cannot release them from their frustration."
January 1, 1970
https://en.wikiquote.org/wiki/Morris_Schappes