All violence is the result of people tricking themselves into believing that their pain derives from other people and that consequently those people deserve to be punished.

Marshall Bertram Rosenberg, PhD, (1934–2015) was an American psychologist, mediator, author, and teacher. Starting in the early 1960s he developed Nonviolent Communication, a process for resolving conflict among people and supporting partnership in relationships and society. He worked worldwide as a peacemaker and in 1984 founded the Center for Nonviolent Communication, an international nonprofit offering educational opportunities and support. He initiated peace programs in several war-torn areas throughout the world.