Friedman reveres "the most mysterious human product of them all", by which he means not culture, nor God, nor even the Daily Mail, but semen. Yet for one so keen on semen, he is oddly reluctant to think about the dissemination of knowledge and world views. The accounts of cultural shift in his pages are all of the bogus "The age of Freud was forced to yield to the age of Friedan" type, in which epochs are changed as easily, and almost as regularly, as underwear. Leeuwenhoek looks down his microscope at some leftovers from the exercise of his conjugal rights and "this sight changed everything, man's understanding of himself, his relationship to God, to nature".