[611] _Táwil_ is the allegorical sense of the doctrine. We have, upon the meaning of _tanzîl_ and _táwîl_, a Dissertation written by Silvestre de Sacy: _Commentatio de notione vocum_ Tánzîl _et_ Táwîl, _in libris qui ad Druzorum religionem pertinent_, in the XVIth vol. of _Comment. Soc. Reg. Scient. Götting., class. hist. et phil._, p. 3 and seq. [612] See a detailed account of him hereafter. [613] صادق, _sadik_ is known to be the epithet of Joseph, Abu bekr, Jesus, and Jâfer, the sixth Imám; it appears to designate the Imám, the Dái, or the acknowledged spiritual guide among the Ismâilahs; I shall therefore retaîn the term in the translation. [614] The celebrated Ghazáli composed among a hundred works, thirty-three of which are enumerated by the baron Hammer-Purgstall, two with the titles القسطاس _alkistas_, “the balance,” and مزان الاعمال _mízan olâamál_, “the balance of actions.” [615] The attribute of God and the name of the prophet are, not without intention, confounded. [616] _Khájah_ signifies “lord, professor, man of distinction” (and also a eunuch). Khájah is the title commonly prefixed to _Naśir-eddin_, “the defender of the faith,” which is the surname of Muhammed ben Hassan or Ben Muhammed al Túsi, born in Tús, in the year of the Hejira 597, A. D. 1200. He is acknowledged to have been the doctor who acquired among Muselmans the highest reputation in all sorts of sciences; he was a commentator of Euclid, and of the spherics of Theodosius and Menelaus. He left scientific works, duly admired, and was an astronomer, lawyer, theologian, and statesman. We shall have to touch upon the part which he took in the great events of his days. He died in the year of the Hejira 672, or, according to some, 687 (A. D. 1273 or 1285).