Logic Philosophy 148 Reasoning 95 Science 58 History 52 Logica 47 Methodology 47 more ... Knowledge, Theory of 44 Metaphysics 37 Language and languages 36 Mathematics 32 Thought and thinking 32 Logic, Symbolic and mathematical 27 Ethics 23 Rhetoric 22 Persuasion (Rhetoric) 17 Artificial intelligence 15 Truth 15 Conduct of life 14 Analysis (Philosophy) 13 Education 13 English language 13 Language and logic 13 Grammar, Comparative and general 12 Physics 12 Reasoning (Psychology) 12 Paradox 11 Semantics 11 Induction (Logic) 10 Modality (Logic) 10 less ...