One of the ironies surrounding Machiavelli is that there has never been anything resembling a Machiavellian school of thought. For all their so-called realism, his political theories have not led to any grand social or political movements, nor has he sponsored any revolutions, nor inspired any new constitutions. In the history of European or world politics, he is not nearly as important as someone like Rousseau, for instance, who in many ways laid the ideological foundation for the French Revolution, to say nothing of Marx, whose theories led to concrete social and political transformations in many 20th-century societies.