Warriors and Worriers (Benenson) The Prince (Machiavelli) Beyond Good And Evil (Nietzche) A History of Western Philosophy (Russel) The Fourth Turning (Strau

Warriors and Worriers (Benenson) The Prince (Machiavelli) Beyond Good And Evil (Nietzche) A History of Western Philosophy (Russel) The Fourth Turning (Strauss, Howe) Also, Discourses on the First Decade of Titus Livius (Machiavelli) is a fascinating read on human political machinations (albeit fairly slanted by Machiavelli's personal views)