Metaphysical scientists try to clarify the basic concepts (categories) that people use to understand the world, such as existence, objects and their properties, space and time, causality and possibility.
One of the main branches of metaphysics is ontology, that is, the study of basic categories and their relationships. Another main branch of metaphysics is cosmology, that is, the study of origin (if any), basic structure, nature and cosmic dynamics.
Extended data:
The word "metaphysics" in English or "metaphysics" in Latin comes from Greek: μ ε τ? (metá) means after or above, and? φυσικ? (physiká) means "natural, natural product" in Greek, and the two radicals together are μ ε υ α φ υ σ ι κ? It means "go with nature".
Metaphysics actually appeared because Aristotle wrote in his book Nature (φ υ υ υ κ? ) and label these discussions: "post-naturalism" (τ? μετ? τ? φυσικ? βιβλ? α), meaning the book after nature).
This term is misunderstood by Latin annotators as "science beyond natural science". The problems discussed by Aristotle in his book have become many basic problems of metaphysics.
Baidu encyclopedia-metaphysics