Therefore...

Therefore, in contrast to other fields of learning, the philosophical search is not limited to a certain pare of the universe. Why is that so? The answer should be looked for in the subject of science and philosophy. In general, each real science has certain subject, which determines the range of its issues. The subject of each of the sciences encompasses only a certain part of the universe, but the subject of philosophy is general and inclusive.

The absolute existent and its laws As it has been mentioned above, the laws of all science deal with the special existent and the one condition for the applicability of these laws to an existent is that the existent should have a special quiddity. Now, are there any laws whose application to an existent is not conditional by the special quiddity of that existent, so that its mere; existence ‘’ would suffice and the presence or absence of a special quiddity would be irrelevant?

In other words, are there any laws that are laws of ‘’ being’’ rather than law of ‘’ being with a special essence’’, laws of the absolute existent than those of an existent qua its having a special quiddity, and in philosophical term, law of “being qua being”? The answer is yes. Philosophical laws are indeed of this nature.

For example, the law of causality (every essentially possible existent needs a cause) which is a philosophical law, includes every possible existent, whether that existent has or does not have a quiddity is a man, a horse, a tree, gold, or an angel.

The subject Of Philosophy To Summarize, the laws of sciences are the laws of the special existent and apply to an existent only qua its possessing an essential determination; the laws of philosophy, however, are the laws of the absolute existent and do not require that it should possess a particular quiddity as a condition of their application. We may conclude that the subject of all other sciences is the special existent, that is, an existent qua its special essential determination.

All other science study existents once their quiddities are determination. In other words, the subject of all other science is quiddity while that of philosophy is existence or being. The Definition of Philosophy Keeping in mind its subject, we can define philosophy as follows: Philosophy is that field of knowledge in which characteristic of the absolute existent are discussed.