Pacifism is the broad commitment to making peace. The idea is complicated by the fact that peace is a family resemblance term: there are many varieties of peace. Peace is easiest to define dialectically as the opposite of war or violence. Pacifism has thus been described simply as anti-war or as a commitment to nonviolence. One conceptual difficulty here is that when peace is defined negatively, pacifism appears as a reactionary response to war and violence. Discussions of peace thus often employ negative terms and creative neologisms to express the concept of peace: “nonviolence,” “nonwar,” “nonkilling,” “non-conflict,” or “nonwar.” Peace advocates will, however, insist that peace should be understood as a primary concept connected to cooperation, harmony, and positive human relations and that it is a mistake to understand peace in merely negative terms. At any rate, peace scholarship has long emphasized the distinction between negative peace and positive peace: negative peace is the absence of violence or war while positive peace encompasses cooperative, tranquil, and harmonious relations and the broader concerns of human flourishing and integration.
What does the author mean by tranquil, and harmonious relations?