In 142 CE, the divine Lord Lao descended to Mount Cranecall (Sichuan province) to establish a new covenant with humanity through a man named Zhang Ling, the first Celestial Master. Facing an impending apocalypse caused by centuries of sin, Zhang and his descendants forged a communal faith centering on a universal priesthood, strict codes of conduct, and healing through the confession of sins; this faith was based upon a new, bureaucratic relationship with incorruptible supernatural administrators. By the fourth century, Celestial Master Daoism had spread to all parts of China, and has since played a key role in China’s religious and intellectual history. Celestial Masters is the first book in any Western language devoted solely to the founding of the world religion Daoism. It traces the movement from the mid-second century CE through the sixth century, examining all surviving primary documents in both secular and canonical sources to offer a comprehensive account of the development of this poorly understood religion. It also provides a detailed analysis of ritual life within the movement, covering the roles of common believer or Daoist citizen, novice, and priest or libationer.

The present study addresses problems of an epistemological nature which hinge on the question of how to define Jewish thought. It will take its start in an ancient question, that of the relationship between Jewish culture, Greek philosophy, and then Greco-Roman (and Christian) thought in connection with the query into the history and genealogy of wisdom and knowledge. Our journey into the history of the denomination ‘Jewish philosophy’ will include a leg that will lead us to certain declarations of political, moral, and scientific principles, and then on to the birth of what is called philosophia perennis or, in Christian circles, prisca theologia. Our subject of inquiry will thus be the birth of the concept of Jewish philosophy, Jewish theology and Jewish philosophy of religion. A special emphasis will fall on the topic treated in the last part of this study: Jewish scepticism, a theme that involves a philosophical attitude founded on dialectical "enquiry", as the etymology of the Greek word skepsis properly means.