Immanuel Kant which means they are necessary and universal, yet known through intuition. Kant's often brief remarks about mathematics influenced the mathematical school known as intuitionism, a movement in philosophy of mathematics opposed to Hilbert's formalism, and Frege and Bertrand Russell's logicism. With his "", Kant is considered to have foreshadowed many of the ideas that have come to form the democratic peace theory, one of the main controversies in political science. Prominent recent Kantians include the British philosophers P. F. Strawson and Quassim Cassam and the American philosophers Wilfrid Sellars and Christine Korsgaard. Due to the influence of Strawson and Sellars,
John Dewey in 1937, which cleared Leon Trotsky of the charges made against him by Joseph Stalin, and marched for women's rights, among many other causes. In 1939, John Dewey was elected President of the League for Industrial Democracy, an organization with the goal of educating college students about the labor movement. The Student Branch of the L.I.D. would later become Students for a Democratic Society. In 1950, Dewey, Bertrand Russell, Benedetto Croce, Karl Jaspers, and Jacques Maritain agreed to act as honorary chairmen of the Congress for Cultural Freedom, a false-front anti-communist advocacy group founded that year and funded by the