In his book, An Account of the Rise and Progress of Muhammadanism, Dr. Henry Stubbe observes as follows: "Ali was of a brown complexion, a little man with a belly somewhat large, he had a contempt of the world, its glory and pomp. He feared God much, gave many alms, was just in all his actions, humble and affable, of an exceeding quick wit, and of an ingenuity that was not common. He was exceedingly learned, not only in those sciences that terminate in speculation, but those which extend to practice".