One of France's preeminent historians of philosophy, Marcel Conche has written and translated more than thirty-five books and is recognized for his groundbreaking and authoritative work in Greek philosophy, as well as on Montaigne. In Philosophizing ad Infinitum, one of his most remarkable and daring books, Conche articulates a unique and powerful understanding of nature, inclusive of humanity, as infinite in time and space--ever self-renewing, eternal, and beyond complete understanding or control. In today's world the notion of infinity is at the core of the crisis humanity faces understanding nature. For the last two hundred years economies have been running at full speed, fueled by the implicit belief that natural resources are infinite; however, it is clear that they are not and that humanity needs to radically rethink the foundations of environmental and economic systems. Conche seeks to begin this rethinking, illustrating along the way insightful and sometimes unorthodox ideas about Plato, Aristotle, Epicurus, Montaigne, Nietzsche, Bergson, and others.