QUOTE : Critique of unfulfilment and alienation should not be reduced to a bleak picture of pain and despair. It implies an endless appeal to what is possible in order to judge the present and what has been accomplished. It examines the dialectical movements intrinsic to what is concrete in the human, i.e., to the everyday: the possible and the impossible, the random and the certain, the achieved and the potential. The real can only be grasped and appreciated via potentiality, and what has been achieved via what has not been achieved. But it is also a question of determining the possible and the potential and of knowing which yardstick to use.