The world has arrived at a pivot point in history. You could drive a nail through this decade, and the future of the planet would swing in the balance. What can be done to tip the scales toward a resilient, and flourishing, future? Three things, we’re told, all of them essential. First, stop damaging the planet’s life-supporting systems. Second, imagine new and better ways to live on Earth. Third, and most important, change the story about who we are, we humans—not the lords of all creation, but lives woven into the complex interdependencies of a beautiful, unfolding planetary system. Many people are pursuing the first two goals. But Mary Evelyn Tucker has taken up the third, making it her life’s work.