text: In Martin Heidegger's philosophy, this phenomenon is the "ownmost possibility" of Dasein, which can be authentic or inauthentic in "being-towards" this thing.
full_question: In Martin Heidegger's philosophy, this phenomenon is the "ownmost possibility" of Dasein, which can be authentic or inauthentic in "being-towards" this thing. Arthur Schopenhauer claimed that this thing is the "true inspiring genius, or the muse of philosophy". Xanthippe cries in anticipation of an event of this type in the dialogue Phaedo. A Michel de Montaigne essay claims that to study of philosophy is to learn how to undergo this process. Epicurus's atomism led him to argue that people need not (*) fear this event happening to them as it is "nothing to us". Chapter 1 of a Kierkegaard book claims that despair is The Sickness Unto this phenomenon. For 10 points, name this inevitable event for every living thing, which occurred for Socrates after he drank hemlock.
first_sentence: In Martin Heidegger's philosophy, this phenomenon is the "ownmost possibility" of Dasein, which can be authentic or inauthentic in "being-towards" this thing.
raw_answer: death [or dying; accept more specific answers such as execution or suicide until "learn"]