Knowledge, Theory of Philosophy 37 Science 23 Logic 13 Methodology 13 Metaphysics 10 Analysis (Philosophy) 8 Reasoning 8 Reason 7 Congresses 6 Language and languages 6 Mind and body 6 Thought and thinking 6 Artificial intelligence 5 Dialectical materialism 5 History 5 Truth 5 Causation 4 Consciousness 4 Ontology 4 Phenomenology 4 Political science 4 Reality 4 Symbolism 4 Civilization 3 Experience 3 Idea (Philosophy) 3 Idealism 3 Perception 3 Philosophy, Modern 3