The "Alexander romance" also had an important influence on Arabic wisdom literature. In "Secretum Secretorum" ("Secret of Secrets", in Arabic "Kitab sirr al-asrar"), an encyclopedic Arabic treatise on a wide range of topics such as statecraft, ethics, physiognomy, alchemy, astrology, magic and medicine, Alexander appears as a speaker and subject of wise sayings and as a correspondent with figures such as Aristotle. The origins of the treatise are uncertain. No Greek original exists, though there are claims in the Arabic treatise that it was translated from the Greek into Syriac and from Syriac into Arabic by a well-known 9th century translator, Yahya ibn al-Bitriq (?–815 AD). It appears, however, that the treatise was actually composed originally in Arabic.