" his genetic inheritance not only enables Homo sapiens to make conscious change, to undertake an unprecedented kind of evolution, but also controls and limits him. The irrationalities of the twentieth century show the narrow limits of our capacity for conscious control of our destiny. To this extent, we are still determined, still unfree, still a part of a nature which produced our unique qualities in the first place only by evolutionary selection. "

― , The New Penguin History of The World