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,
Scepticism in law he could hire an expert to write a speech for him, or, as many preferred, he could pay for instruction in the arts required for success in the law courts. These arts the Sophists were supposed to teach". Stumpf writes about Sophists as, "It was their skepticism and relativism that made them suspect. No one would have criticized them for training lawyers, as they did, to be able to argue either side of a case" Philosophy, History & Problems, p. 30. American legal sceptics are influenced by 'pragmatism' of William James, Dr. John Dewey, and F.e.S. Schiller. Bertrand Russell declares