1588-1679 1888-1985 1893-1976 1909-2004 20thcentury carl china communism history leo mao norberto phi019000pol005000pol010000 philosophy political politicalandsocialviews politicalandsocialviewsbobbio politicalandsocialviewshobbes politicalandsocialviewsmao politicalandsocialviewsstrauss politicalideologies politicalscience schmitt socialism socialsciences theory thomas worldpolitics zedong