By: Leonard P. Liggio Histories of the Classical Liberal tradition begin with the Stoic philosophers of the Greco-Roman world. Greek political philosophy of Plato and Aristotle focused on the polis or Greek city-state with its small and homogeneous population. This world ended with Alexander the Great’s conquest of the Persian Empire. With his early death, his generals who were his successors from Egypt and Greece to the Indus River established several empires with large new cities of many populations but with commercial Greek as the common language. The polis was replaced by the cosmos polis – the world city, or…