Psychologically, present-day cynics can be understood as borderline melancholics, who can keep their symptoms of depression under control and can remain more or less able to work. … Their psychic (seelisch) apparatus has become elastic enough to incorporate as a survival factor a permanent doubt about their own activities. They know what they are doing, but they do it because, in the short run, the force of circumstances and the instinct for self-preservation are speaking the same language, and they are telling them that it has to be so.

p. 5 - Kritik der zynischen Vernunft [Critique of Cynical Reason] (1983)