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Full Idea
Dasein's Being-what-it-is (essentia) must….be conceived in terms of its Being (existentia).
Gist of Idea
Being what it is (essentia) must be conceived in terms of Being (existence)
Source
Martin Heidegger (Being and Time [1927], 67/42), quoted by Richard Polt - Heidegger: an introduction 3.§2
Book Ref
Polt,Richard: 'Heidegger: an introduction' [Routledge 2003], p.30
A Reaction
This seems to be the origin of Sartre's famous slogan 'existence before essence'. It seems to be a rebellion against Husserl's quest for essences.
Related Idea
Idea 15570 Phenomenology is the science of essences - necessary universal structures for art, representation etc. [Husserl, by Polt]
3635 | Essence must be known before we discuss existence [Descartes] |
6916 | For Kant, essence is mental and a mere idea, and existence is the senses and mere appearance [Kant, by Feuerbach] |
5650 | Reason is just abstractions, so our essence needs a subjective 'leap of faith' [Kierkegaard, by Scruton] |
14808 | Over huge periods of time human character would change endlessly [Nietzsche] |
20130 | It is absurd to think you can change your own essence, like a garment [Nietzsche] |
15572 | Being what it is (essentia) must be conceived in terms of Being (existence) [Heidegger] |
6868 | 'Existence precedes essence' means we have no pre-existing self, but create it through existence [Sartre, by Le Poidevin] |
3842 | Existence before essence (or begin with the subjective) [Sartre] |
6705 | Existentialism may transcend our nature, unlike eudaimonism [Graham] |
20733 | Our 'existence' is how we create ourselves, unconstrained by any prior 'essence' [Aho] |