Belief and doubt Faith and reason 4 Philosophy 3 Skepticism 3 Religion 2 Revelation 2 Apologetics 1 Artificial intelligence 1 Attitude (Psychology) 1 Attribution (Social psychology) 1 Certainty 1 Christianity 1 Church and education 1 Computer simulation 1 Controversial literature 1 Early works to 1800 1 Education 1 Ethics 1 Faith 1 God 1 Good and evil 1 Hope 1 Identity (Philosophical concept) 1 Judgment (Logic) 1 Knowableness 1 Knowledge, Sociology of 1 Knowledge, Theory of 1 Language and languages 1 Logic 1 Probabilities 1