A bomb book, a sensational book. One of the most famous and controversial works of the twentieth century. Its popularity is difficult to imagine, the scope of controversy and discussion that it caused throughout the world is impossible to imagine. It was extolled by the “extreme right” and betrayed anathema to suffragettes and feminists, defended by natural philosophers and cursed by social philosophers. It was hated and adored, and not reading it was considered simply indecent for any self-respecting, intelligent person. What did the twenty-three-year-old author manage to write in it, if heated and furious discussions around his name do not cease to this day?.. In PDF A4 format The publishing layout has been preserved.