Sartre expresses the basic tenet of existentialism in this way: Existence precedes essence. In this statement he is taking existentia and essentia according to their metaphysical meaning, which from Plato's time on has said that essentia precedes existentia. Sartre reverses this statement. But the reversal of a metaphysical statement remains a metaphysical statement. With it he stays with metaphysics in oblivion of the truth of Being.

For words and language are not wrappings in which things are packed for the commerce of those who write and speak. It is in words and language that things first come into being and are.

How many Germans "live" who speak their mother tongue effortlessly and yet are unable to understand Kant's Critique of Pure Reason or one of Hölderlin's hymns! Hence whoever has mastered the Greek language, or has some acquaintance with it by accident or choice, possess not the least proof thereby that he is able to think according to the thought of a Greek thinker.

All the propositions of ontology are Temporal propositions. Their truths unveil structures and possibilities of being in the light of Temporality. All ontological propositions have the character of Temporal truth, veritas temporalis.

Everyone is the other and no one is himself.

Precisely because we have embarked on the great and long venture of demolishing a world that has grown old and of rebuilding it authentically anew, i.e. historically, we must know the tradition. We must know more—i.e. our knowledge must be stricter and more binding—than all the epochs before us, even the most revolutionary. Only the most radical historical knowledge can make us aware of our extraordinary tasks and preserve us from a new wave of mere restoration and uncreative imitation.

Everywhere we remain unfree and chained to technology, whether we passionately affirm or deny it. But we are delivered over to it in the worst possible way when we regard it as something neutral; for this conception of it, to which today we particularly pay homage, makes us utterly blind to the essence of technology.

Certainly, "dialectic" is a magnificent thing. But one never finds the dialectic, as if it were a mill which exists somewhere and into which one empties whatever one chooses, or whose mechanism one could modify according to taste and need.

In der Region, in der alles, was gefunden wird, im Lichte der Ursache-Wirkungs-Beziehung dargestellt wird, kann selbst Gott seine Heiligkeit und Herrlichkeit und all die Geheimnis seiner Distanz verlieren.