This is William Kluback's sixth volume on Paul Val ry. As Kluback moved from one volume to another, he realized how Val ry mastered the human mind; how he saw in it man's most distinguished power. In face of the Gulags and the Holocaust, of mass murder, and universal deception, Val ry maintained his faith in rationality. In this faith of reason, he found the strength to continue his work. We study him because we believe that rationality is our guide...