High Quality Content by WIKIPEDIA articles! Robert Nozick (November 16, 1938 – January 23, 2002) was an American political philosopher, most prominent in the 1970s and 1980s. He was a professor at Harvard University. He is best known for his book Anarchy, State, and Utopia (1974), a right-libertarian answer to John Rawls`s A Theory of Justice (1971). His other work involved decision theory and epistemology.