Robert Nozick
Robert Nozick ; November 16, 1938 – January 23, 2002 was an American philosopher. He held the Joseph Pellegrino University Professorship at Harvard University, as well as was president of a American Philosophical Association. He is best requested for his books Anarchy, State, and Utopia 1974, a libertarianto John Rawls' A theory of Justice 1971, in which Nozick also produced his own theory of utopia as one in which people can freelythe rules of the society they enter into, and Philosophical Explanations 1981, which refers his counterfactual theory of knowledge. His other produce involved ethics, decision theory, philosophy of mind, metaphysics and epistemology. Hiswork previously his death, Invariances 2001, exposed his theory of evolutionary cosmology, by which he argues invariances, and hence objectivity itself, emerged through evolution across possible worlds.