Can politics be studied scientifically, and if so, how? Assuming it is impossible to justify values by human reason alone, social science has come to consider an unreflective relativism the only viable basis, not only for its own operations, but for liberal societies more generally. Although the experience of the sixties has made social scientists more sensitive to the importance of values, it has not led to a fundamental reexamination of value relativism, which remains the basis of contemporary social science. Almost three decades after Leo Strauss's death, Nasser Behnegar offers the first...