[A] process was going on in which people were transformed into things, into pieces of reality which pure science can calculate and technical science can control. … [T]he safety which is guaranteed by well-functioning mechanisms for the technical control of nature, by the refined psychological control of the person, by the rapidly increasing organizational control of society – this safety is bought at a high price: man, for whom all this was invented as a means, becomes a means himself in the service of means.
Paul TillichAnxiety may consist of the loss of psychological or spiritual meaning which is identified with one's existence as a self, i.e., the threat of meaninglessness.
Paul TillichMan and nature belong together in their created glory – in their tragedy and in their salvation.
Paul Tillich