"Sic et Non," meaning "Yes and No" in Latin, is a philosophical work by the medieval scholar Peter Abelard. Written in the 12th century, it presents a collection of conflicting quotations from various authorities, including the Bible and Church Fathers. The purpose of the text is to encourage critical thinking and debate about theological issues. The work is structured around 158 questions, each followed by contradictory answers. This format challenges readers to explore the complexities of faith and reason, ultimately promoting a deeper understanding of Christian theology and the importance of questioning established beliefs.