Abū-Muhammad Muslih al-Dīn bin Abdallāh Shīrāzī, Saadi Shirazi (Persian: ابومحمد مصلح الدین بن عبدالله شیرازی‎, Arabic: سعدي الشيرازي) better known by his pen-name as Saʿdī (Persian: سعدی) or simply Saadi, was one of the major Persian poets of the medieval period. He is not only famous in Persian-speaking countries, but has also been quoted in western sources. He is recognized for the quality of his writings and for the depth of his social and moral thoughts. Saadi is widely recognized as one of the greatest masters of the classical literary tradition. His best known works are Bostan (The Orchard) completed in 1257 and Gulistan (The Rose Garden) in 1258. Bostan is entirely in verse (epic metre) and consists of stories aptly illustrating the standard virtues recommended to Muslims (justice, liberality, modesty, contentment) as well as of reflections on the behaviour of dervishes and their ecstatic practices. Gulistan is mainly in prose and contains stories and personal anecdotes. The text is interspersed with a variety of short poems, containing aphorisms, advice, and humorous reflections. Saadi demonstrates a profound awareness of the absurdity of human existence. The fate of those who depend on the changeable moods of kings is contrasted with the freedom of the dervishes.