The Liber de Causis (or Liber Aristotelis de Expositione Bonitatis Purae; Book of Causes) is a Latin translation of an Arabic work that is derived from the "Elements of Theology" of Proclus (fifth century CE). The author of the Arabic work is unknown; some scholars consider it the twelfth-century composition of David the Jew (Abraham ibn Daud or Avendeath) at Toledo, while others believe it an eighth- or ninth-century product of a school of Neoplatonism in the Near East, possibly stemming from a still earlier Syriac source.

At least one Latin translation appeared before 1187, probably the product of the Toledan translator, Gerard of Cremona. The work then came to be ascribed variously to David, al-Fārābī, or Aristotle. By 1255 the Parisian Faculty of Arts, considering it a work of Aristotle, included it in the curriculum.

Among the many doctrines contained in the 211 chapters...