It is a common misconception that the Nazis wanted their eugenics program to create a new breed of supermen. In fact, they wanted to breed back to the archetypal Nordic man. They located their ideals in the past, which is a counterintuitive idea for many of us.

The first time I read the sequences, this struck me as unobjectionable and yet another reason to look down on the Nazis. But in reading Sapiens, I realized that I didn't actually have any first or second-hand evidence on which to base that impression, and that bothered me when reading R:AZ.

Does anyone know of any good works on what the Nazis actually believed when it comes to genetics and the modification of populations? I'd prefer second-hand sources, because I'd rather trust a Nazi historian on what Nazis believed than any individual Nazi, but I'm willing to read primary sources if there are some that are deeply relevant.