Book excerpt: The Tattvapaplavasimha is a philosophical text unique of its kind it is the only text of the Carvaka Lokayata school which has survived and the only Sanskrit work in which full-fledged scepticism is propounded. Notwithstanding that it has been hitherto almost completely ignored. The present book consists of an introduction detailed analysis edition translation with extensive notes of the first half of the text. In the introduction Jayarasi`s affiliation to the Lokayata school is reassessed and his place in the historical development of Indian Philosophy evaluated. New evidence for the dating of Jayarasi is examined and a new dating is suggested.