ness on the part of the speaker, though it is ail established fact in the science of astronomy, so that no one learned in that science will have any doubt about it. The science which needs most examples from other sciences is that of Law. For the study of jurisprudence cannot be completed except in a very long time. If a man today would himself learn of all the arguments discovered by the different disputants of diverse sects, in problems which have always excited contentions in all the big cities, except those of Al-Maghrib, he would be a proper object to be laughed at on account of the impossibility of the task, in spite of the existence of every favourable circumstance. This is similar not only in the sciences but also in the arts. For no one is capable of discovering by himself alone everything which is required. And if this is so in other sciences and arts, how is it possible in the art of arts—philosophy?
This being so, it becomes us to go
