Modern philosophy will determine the scope of one's use of "modern philosophy." How much of Renaissance intellectual history is part of modern philosophy is disputed: the Early Renaissance is often considered less modern and more medieval compared to the later High Renaissance. By the 17th and 18th centuries the major figures in philosophy of mind, epistemology, and metaphysics were roughly divided into two main groups. The "Rationalists," mostly in France and Germany, argued all knowledge must begin from certain "innate ideas" in the mind. Major rationalists were Descartes, Baruch Spinoza, Gottfried Leibniz, and Nicolas Malebranche. The "Empiricists," by contrast, held that knowledge
Frank Meyer (political philosopher) Frank Meyer (political philosopher) Frank Straus Meyer (; 1909–1972) was an American philosopher and political activist best known for his theory of "fusionism" – a political philosophy that unites elements of libertarianism and traditionalism into a philosophical synthesis which is posited as the definition of modern American conservatism. Meyer's philosophy was presented in two books, primarily "In Defense of Freedom: A Conservative Credo" (1962) and also in a collection of his essays, "The Conservative Mainstream" (1969). Fusionism has been summed up by E. J. Dionne, Jr. as "utilizing libertarian means in a conservative society for traditionalist ends." Meyer was born