A decent overview of biological and physiological themes in Nietzsche’s work. The author explains Nietzsche’s interest in biology, the influence of contemporary scientists - Haeckel, Roux, Rolph, Galton - on his work, his attitude toward Darwinism, fascination with eugenics, caste systems and racial theories. The books lists, explains and puts in context scientific literature that Nietzsche read.
Nietzsche often resorted to biological explanations to support his philosophical views. His cultural criticisms also had underlying biological and physiological themes. Acknowledging Nietzsche’s deep interest in biology and physiology is important to understand his work correctly, since postmodernists often distort his philosophy by downplaying his biological determinism and dismissing many of his unpopular ideas as unserious provocations and metaphors.
It is quite a short book and, somewhat arbitrarily, it doesn’t give the same attention to all biological themes in Nietzsche work, but it gives a fair overview of his thought and it doesn’t try to downplay his more extreme opinions. The concluding chapter is quite strange since it doesn’t really provide any meaningful final thoughts and it contains unusually lengthy discussion of several authors that weren’t event mentioned in the prior text. It’s not a great book, there are some weaker parts, but it’s definitely worth reading if you’re interested in the subject, it gives useful background and context to Nietzsche’s biologism.