id author title date pages extension mime words sentences flesch summary cache txt en-wikipedia-org-8793 Essence - Wikipedia .html text/html 2952 552 57 Essence (Latin: essentia) is a polysemic term, used in philosophy and theology as a designation for the property or set of properties that make an entity or substance what it fundamentally is, and which it has by necessity, and without which it loses its identity. In the history of Western philosophy, essence has often served as a vehicle for doctrines that tend to individuate different forms of existence as well as different identity conditions for objects and properties; in this logical meaning, the concept has given a strong theoretical and common-sense basis to the whole family of logical theories based on the "possible worlds" analogy set up by Leibniz and developed in the intensional logic from Carnap to Kripke, which was later challenged by "extensionalist" philosophers such as Quine. In his dialogues Plato suggests that concrete beings acquire their essence through their relations to "Forms"—abstract universals logically or ontologically separate from the objects of sense perception. ./cache/en-wikipedia-org-8793.html ./txt/en-wikipedia-org-8793.txt