The thesis aims to define the meaning of a human being. It begins by introducing Aristotle’s differentiation of the soul and expands upon it through Heidegger’s critique of metaphysical Platonism. It appears that different historical understandings of the essence of truth correspond to different understandings of the essence of a human being. According to Aristotle, human being exists between vegetative life and the perfection of the gods, distinguished from both by rational activity. This concept of the animal rationale is later radicalized into the dominion of will to power by Nietzsche, confronting us with a complete calculative manipulation of the world—a process that alienates the core essence of Dasein in its ontic-ontological difference. Heidegger asserts that returning to the origin—where Being begins—restores its dignity and re-situates it within the fourfold of the world. Nietzsche’s nihil is thus replaced by logos of physis. In this re-interpretation of the human being, he is both a sentient animal who is moved by soul's language and, because of it, lives closer to the gods. Elucidated language reveals his essence and guides him toward his meaning, namely unconcealment of the world. and formation of history
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