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Shiavault - a Vault of Shia Islamic Books Importance of the Problems of World View Chapter 6 : Metaphysics We said earlier that the word "philosophy" has a number of meanings one of which is synonymous with "metaphysics". It should be kept in mind, however, that the word "metaphysics" itself has various meanings-a fact that may give rise to confusion and misunderstanding.
Derived from the Greek term meta physika, [lit., the (works) after the physical (works)], metaphysics is the name given to that part of philosophy which concerns itself with the general principles of existence, and it appears that the ancient philosophers dealt with this subject after the section dealing with the natural sciences (physics) as a matter of didactic convenience.
Thus it came to be called "after physics." As we said earlier, when all the other fields of learning separated from philosophy, what was left behind was metaphysics.
Since metaphysics deals with nonmaterial existence, a misunderstanding has arisen that metaphysics deals with supernatural phenomenon, and this misunderstanding has in turn caused spiritual philosophies to be branded as "metaphysical." The fact of the matter is that metaphysical considerations are not limited to theistic philosophies; the materialist schools are in as much need of metaphysics as others.
This is the case because anyone who wishes to discuss the general and fundamental principles of existence-principles which do not fall within the exclusive domain of any particular science-must enter the realm of metaphysics, irrespective of the sort of conclusions he might reach.
For example, a discussion of the principle of causality is a philosophical and metaphysical one, and although it is considered to be an axiom and used as such by all the experimental sciences, they cannot investigate it through the use of the scientific method and prove its validity. This is so even though their investigations are based upon it, and the formulation of universal scientific laws is possible only because of the law of causation.
Even if someone wants to reject the principle of causality or any of its subordinate laws, he would still have to engage in a metaphysical discussion, and as they say, "philosophy can be refuted only through philosophy." Recently an English philosopher, Robin George Collingwood, has written a treatise on metaphysics in which he has described it as a series of presuppositions which can neither be proved nor disproved.