“The rush and pressure of modern life are a form, perhaps the most common form, of its innate violence,” wrote Trappist monk and peace activist Thomas Merton. “The frenzy of our activism neutralizes our work for peace. . . . It destroys the fruitfulness of our own work, because it kills the root of inner wisdom which makes work fruitful.” As we work together for social and environmental justice, how do we remain grounded in a peaceful spirit? What can we learn from trees?