Taken from his lectures in 1935. If true then, even more so now:
We have said that the world is darkening.
The essential episodes of this darkening are:
The flight of the gods, the destruction of the earth, the standardization of man, the pre-eminence of the mediocre.
Martin Heidegger, German Philosopher, 1889 – 1976, An Introduction to Metaphysics