but these classes that he took only to fill university requirements drew him in , each subject so rich in names and ideas of warring ways of the world keynes versus friedman , ottomans and europeans , the melians and athenians , luther in wittenberg , evolution and creation , germ theory and demons , church and state , aristotle and democritus , hannibal sacks rome , hannibal gets sacked , classical physics and quantum mechanics , aquinas to hume , voltaire and the earthquake and the list continued , lists of lists , ancient places with new names , maps altered with every century .