Mr. Pearson's approach to world politics might be characterized as a combination of moral firmness with patience and toleration, and a determination to explore every possible avenue toward an honorable peace. He has barbed words for those who expect easy solutions to international problems, as well as for those who succumb to despair or take refuge in isolationism. With penetrating insight he outlines the problems introduced by the new scale of armed force in atomic warfare, he considers the problems of international coalitions, and he analyzes the question of secret versus open diplomacy....