Contemporary Islamic philosophy revives some of the trends of medieval Islamic philosophy, notably the tension between Mutazilite and Asharite views of ethics in science and law, and the duty of Muslims and role of Islam in the sociology of knowledge and in forming ethical codes and legal codes, especially the fiqh (or "jurisprudence") and rules of jihad (or "just war"). See list of Islamic terms in Arabic for a glossary of key terms used in Islam. Key figures from different regions, representing important trends include: Muhammad Iqbal sought an Islamic revival based on social justice ideals and emphasized traditional rules, e.g. against usury. He argued strongly that dogma, territorial nationalism and outright racism, all of which were profoundly rejected in early Islam and especially by Muhammad himself, were splitting Muslims into warring factions, encouraging materialism and nihilism. His thought was influential in the emergence of a movement for independence of Pakistan, where he was revered as the national poet. Indirectly this strain of Islam also influenced Malcolm X and other figures who sought a global ethic through the Five Pillars of Islam. Iqbal can be credited with at least trying to reconstruct Islamic thought from the base, though some of his philosophical and scientific ideas would appear dated to us now. His basic ideas concentrated on free-will, which would allow Muslims to become active agents in their own history. His interest in Nietzsche (who he called 'the Wise Man of Europe') has led later Muslim scholars to criticise him for advocating dangerous ideals that, according to them, have eventually formed in certain strains of pan-Islamism. Some claim that the Four Pillars of the Green Party honor Iqbal and Islamic traditions. Fazlur Rahman was professor of Islamic thought at the University of Chicago and McGill University, and an expert in Islamic philosophy. Not as widely known as his scholar-activist contemporary Ismail Raji al-Faruqi, he is nonetheless considered an important figure for Islam in the 20th century.