First published in 1987. "Justice and liberty are the central concepts of social and political thought." These true words of Raphael‘s indicate the importance of these concepts, which resides in the fact that they are significantly linked to most of the other key notions in this field of thought, so that an understanding of them is indispensable for an adequate grasp of Social Philosophy. The author explores these concepts on essays on freedom and fairness, and will be of great interest to students of philosophy.