This is the first critical edition of Epistles 15-21 of the Brethren of Purity, which explore the natural sciences and correspond to Aristotle's great works on philosophy of …
Ikhwan al-Safa' (The Brethren of Purity) were the anonymous adepts of a tenth-century esoteric fraternity of lettered urbanites that was principally based in Basra and Baghdad. …
The Brethren of Purity, the anonymous adepts of a tenth-century esoteric fraternity based in Basra and Baghdad, hold an eminent position in the history of science and philosophy in …