"Sidney Hook" was an American philosophy/philosopher of the Pragmatism/Pragmatist school known for his contributions to the philosophy of history, the philosophy of education, political philosophy/political theory, and ethics. After embracing Communism in his youth, Hook was later known for his criticisms of totalitarianism, both fascism, and Marxism–Leninism. A pragmatic social democracy/social democrat, Hook sometimes cooperated with Conservatism in the United States/conservatives, particularly in opposing Communism. After World War II, he argued that members of such groups as the Communist Party USA and other democratic centralism/Leninist conspiracies could ethically be barred from holding the offices of public trust because they called for the violent overthrow of democracy/democratic governments.If you enjoy these quotes, be sure to check out other famous philosophers! More Sidney Hook on Wikipedia.