Ethics & moral philosophy Social & political philosophy 61 Philosophy 40 Western philosophy, from c 1900 - 20 History of Western philosophy 18 Philosophy: epistemology & theory of knowledge 16 Medical ethics & professional conduct 15 Western philosophy: c 1600 to c 1900 14 Political science & theory 12 Artificial intelligence 10 Bio-ethics 10 Crime & criminology 8 Medical & healthcare law 8 Philosophy of religion 8 Religion & beliefs 8 Religious ethics 8 Ethics and moral philosophy 7 Human rights 7 Politics & government 7 Psychology 7 Sociology 7 Western philosophy: Ancient, to c 500 7 Diaries, letters & journals 6 Entertainment & media law 6 Interdisciplinary studies 6 Jurisprudence & general issues 6 Jurisprudence & philosophy of law 6 Political economy 6 Western philosophy: Medieval & Renaissance, c 500 to c 1600 6 Animals & society 5