Dr. Boss is one of the outstanding members of a Swiss group who have in recent years been interested in what they term "existential analysis" (daseinsanalyse). In his discussion of the perversions Boss contrasts his theories with the psychoanalytic concepts and also with the so-called "anthropologic" theory of perversion. The exponents of the latter theory emphasize the nature of man (anthropos) as a total entity. They aim to study the human being in relation to his place in the "objective" world, eliminating "subjective" evaluations as much as possible.
According to Boss, the love life of man is to be considered as an entity rather than as a composite of many infantile and adult instinctual drives. He is evidently well versed in psychoanalytic theory, although he carefully avoids the use of psychoanalytic terminology in any of his formulations whenever possible. However, the clinical material makes it evident to the reader that