A parallel Arabic-english edition translated and introduced by Sidney H. Griffith.
Yahya ibn 'Adi (893-974 C.E.) is one of the most important Christian authors to have written in Arabic. Although he was a Syrian Orthodox Christian, he studied under the Muslim philosopher al-Farabi and counted Muslims and Christians of many sects among his own disciples.
He was a leading figure in the tenth-century translation movement in Baghdad and the author of numerous works of philosophy and theology.
In his tract The Reformation of Morals, Yabya ibn 'Adi discourses on social virtues and vices, giving advice about the cultivation of the former and the extirpation of the latter.
His work encourages the pursuit of moral perfection, especially among kings and other members of the social elite.
This work stands now as an important Christian contribution, in Arabic, to a strand of moral philosophy that is an integral component of the intellectual tradition of the world of Islam.
It also serves to "remind the post-modern reader that shared moral values nurtured by a humane philosophy of human development can foster the growth of a measure of tolerance between the upholders of religious convictions that are inherently critical of one another."