Here it may be objected that in the Law there are things which all Muslims have agreed to take esoterically, while there are others on which they have agreed to put an interpretation, while there are some about which they disagree. Is it justifiable to use logic in the interpretation of those which have been taken literally, or otherwise? We would say that if the agreement is positive there is no need to apply logic; but if it be conjectural there is. For this very reason Abu Hamid (Al Ghazzali) and Abu Ma’ali and other learned doctors have ordained that a man does not become an unbeliever by forsaking the common agreement and applying the principle of interpretation in such things. It will certainly be agreed that complete consensus of opinion is not possible in metaphysical questions, in the manner in which it is possible to establish it in practical things. For it is not possible to establish unanimity of opinion at any time, unless we confine ourselves to a small period and know perfectly all the learned doctors living in it, that is, their personalities, their number and their views about any question to be quoted to us directly from them without a break in the chain. With all this we should know for certain that the doctors living at that time are agreed that there is no distinction of exoteric and esoteric meanings in the Law, that the knowledge of no proposition should be concealed from anybody, and that the method of teaching the Law should be the same with all men. But we know that a large number of people in the early days of Islam believed in exoteric and esoteric meanings of the Law, and thought that the esoteric meanings should not be disclosed to an ignorant person who cannot understand them. For example, Bukhari has related on the authority of Ali that he said “Talk to men what they can understand. Do you intend to give the lie to God and His Apostle?” There are many Traditions to the same effect related from other people. So, how is it possible to conceive of any consensus of opinion coming down to us in metaphysical questions when we definitely know that in every age there have been doctors who take the Law to contain things the real significance of which should not be disclosed to all men? But in practical affairs it is quite different. For all persons are of opinion that they should be revealed to all men alike. In these things unanimity of opinion can be easily obtained if the proposition is published, and no disagreement is reported. That may be sufficient to obtain unanimity of opinion in practical things as distinct from the sciences.