During the next four years, he taught at the French school in Compiègne in 1967 and obtained a DES (diplôme d'études supérieures [fr], roughly equivalent to an MA) in Philosophy and a degree in Ancient Greece.

[1] From 1971 to 1977 he taught philosophy in secondary schools in Tunisia and at the University of Paris III: Sorbonne Nouvelle, before becoming director of a publishing company specializing in books for young people between 1984 and 1987.

Seddik has published books and translations about Ancient Greece and Islamic heritage, including works related to Muhammad, Imam Ali, and the Qur'an.

La vie quotidienne à Bagdad au Xe siècle about daily life in Baghdad in the tenth century.

[4] His book, Nous n'avons jamais lu le Coran, released in September 2004 explores the language and symbols that are present in the Koran.