I got this from a free pile, hoping it would give information about human development in a thoughtful and maybe anti-capitalist way, but I was very disappointed. There was a significant amount of repetition throughout the book, multiple instances of atrocity propaganda (including on the first page), and a creepy fixation on genitalia as a way of determining behavior. I suppose I shouldn't have expected much from a book written in 1977, but it often felt like it was written by a high schooler, in that the writing gave off a sense of heavily indoctrinated ignorance, naivete, and triteness. (To E: there might be parts worth reading, so I can loan it to you when we're together next. It's probably best to focus on the parts I've underlined, and so on.)