"The ultimate goal in the pursuit of excellence is enlightenment." Robert M. Pirsig wrote this unpublished line in 1962 while a patient at Downey Veteran Administration Hospital in Illinois, where he was admitted as a psychiatric patient. More than a decade before the release of the book that would make him famous, Pirsig had already caught hold of the central theme that would animate Zen and the Art of Motorcycle Maintenance. Now for the first time, readers will be granted access to five decades of Pirsig's personal writings in this posthumous collection that illuminates his thinking to an unprecedented degree. Skillfully edited and introduced by Wendy Pirsig, Robert's wife of over forty years. Since its publication in 1974, Zen and the Art of Motorcycle Maintenance has established itself as a modern classic of popular philosophy; selling millions of copies and transforming a generation, while serving as a perennial touchstone for the generations that follow. On Quality is a remarkable addition to the literary and philosophical canon, from one of the most influential thinkers and writers of our time.