In philosophy, essence is the attribute or set of attributes that make an object or substance what it fundamentally is, and which it has by necessity, and without which it loses its identity. Essence is contrasted with accident: a property that the object or substance has contingently, without which the substance can still retain its identity. The concept originates with Aristotle, who used the Greek expression to ti ên einai, literally 'the what it was to be', or sometimes the shorter phrase to ti esti, literally 'the what it is,' for the same idea. This phrase presented such difficulties for his Latin translators that they coined the word essentia to represent the whole expression. For Aristotle and his scholastic followers the notion of essence is closely linked to that of definition (horismos)
In the history of western thought, 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 eminently 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.
The English word "essence" comes from the Latin essentia, which was coined (from the Latin esse, "to be") by ancient Roman scholars in order to translate the Ancient Greek phrase to ti ēn einai (literally, "what it is for a thing to be"), coined by Aristotle to denote a thing's essence.
Aristotle moves the forms of Plato to the nucleus of the individual thing, which is called ousía or substance. Essence is the tí of the thing, the to tí en einai. Essence corresponds to the ousia's definition; essence is a real and physical aspect of the ousía. (Aristotle, "Metaphisic", I)
According to nominalists (Roscelin of Compiègne, William of Ockham, John Duns Scoto, William of Champeaux, Bernard of Chartres), universals aren't concrete entities, just voice's sounds; there are only individuals: "nam cum habeat eorum sententia nihil esse praeter individuum(...)" (Roscelin, De gener. et spec., 524). Universals are words that can to call several individuals; for example the word "homo". Therefore a universal is reduced to a sound's emission. (Roscelin, "De generibus et speciebus")
According to Edmund Husserl essence is ideal. However, ideal means that essence is the intentional object of the conscience. Essence is interpreted as sense. (E. Husserl, "Ideas pertaining to a pure phenomenology and to a phenomenological philosophy", paragraphs 3 and 4).
Thus, in existentialist discourse, essence can refer to physical aspect or attribute, to the ongoing being of a person (the character or internally determined goals), or to the infinite inbound within the human (which can be lost, can atrophy, or can be developed into an equal part with the finite), depending upon the type of existentialist discourse.
Karl Marx was, along with Kierkegaard, a follower of Hegel's, and he, too, developed a philosophy in reaction to his master. In his early work, Marx used Aristotalian style teleology and derived a concept of humanity's essential nature. Marx's Economic and Philosophical Manuscripts of 1844 describe a theory of alienation based on human existence being completely different from human essence. Marx said human nature was social, and that humanity had the distinct essence of free activity and conscious thought.
Some scholars, such as Philip Kain, have argued that Marx abandoned the idea of a human essence, but many other scholars point to Marx's continued discussion of these ideas despite the decline of terms such as essence and alienation in his later work.
Of the many places to find the philosophical Examination of Essence, it is discussed in Nagarjuna's Mulamadhyamakakarika, The Fundamental Wisdom of the Middle Way. Chapter I examines the Conditions of Existence, while Chapter XV examines Essence in itself, difference, the eternalist's view and nihilists view of essence and non-essence.
In understanding any individual personality, a distinction is made between one's Swadharma (essence) and Swabhava(mental habits and conditionings of ego personality). Svabhava is the nature of a person, which is a result of his or her samskaras (impressions created in the mind due to one's interaction with the external world). These samskaras create habits and mental models and those become our nature. While there is another kind of svabhava that is a pure internal quality, we are here focusing only on the svabhava that was created due to samskaras (because to discover the pure, internal svabhava, one should become aware of one's samskaras and take control over them). Dharma is derived from the root Dhr - to hold. It is that which holds an entity together. That is, Dharma is that which gives integrity to an entity and holds the core quality and identity (essence), form and function of that entity. Dharma is also defined as righteousness and duty. To do one's dharma is to be righteous, to do one's dharma is to do one's duty (express one's essence).
2. El status ontológico de la esencia o del "qué" de la cosa, Obdulio Banda, IIPCIAL Fondo Editorial, Lima, 2,007, I.S.B.N. 978-9972-9982-1-8
3. Ideas pertaining to a pure phenomenology and to a phenomenological philosophy, Edmund Husserl, Academic Publisher, London Kluwer, 1,982.