Nietzsche, Volume 3 Quotes

“Nietzsche does not see the essence of life in “self-preservation” (“struggle for existence”) as do the biology and the doctrine of life of his time influenced by Darwin, but rather in a self-transcending enhancement.
As a condition of life, value must therefore be thought as that which supports, furthers, and awakens the enhancement of life. Only what enhances life, and beings as a whole, has value — more precisely, is a value.”
― Martin Heidegger, Nietzsche, Volume 3: The Will to Power as Knowledge and as Metaphysics