A "fascinating" (The Wall Street Journal), "spirited and inspiring" (Jacobin) tour through the ages in search of the thinkers and communities that have dared to reimagine how we might better live our daily lives. In the 6th century BCE, the Greek philosopher Pythagoras--a man remembered today more for his theorem about right-angled triangles than for his progressive politics--founded a commune in a seaside village in what's...