This essay aims at analysing, on the basis of Severino’s work, the meaning of τέχνη as related to Nietzsche’s Wille zur Macht concept. The “thing”’s swinging between Being and Non-being characterizes each “worldly entity”’s Becoming. Each “living body”, in order to find self-affirmation, must comply to the same “logic”. Such affirmation’s logic can be applied to different orders of complexity: from “things” to “ideologies”, from a “physical body”’s behaviour to the “living form”. One might wonder whether such “logic” could apply to “artificial” life.