Europe was in the long slumber of the Dark Ages, the Roman Empire was in tatters, and the Greek language was all but forgotten, until a group of Arab, Jewish, and Christian scholars rediscovered and translated the works of Aristotle. His ideas spread across Europe like wildfire, offering the scientific point of view that the natural world, including the soul of man, was a proper subject of study. The Catholic Church convulsed, and riots took place at the universities of Paris and Oxford. Richard Rubenstein recounts with energy and vigor this magnificent story of the intellectual ferment that planted the seeds of the scientific age in Europe and reflects our own struggles with faith and reason.