Knowledge, Theory of Metaphysics 12 Philosophy 12 Reason 9 Ethics 7 Philosophy, Indic 6 Belief and doubt 5 Causation 5 History 4 Meaning (Philosophy) 4 Methodology 4 Philosophy, Modern 4 Truth 4 Congresses 3 Experience 3 Language and languages 3 Nyaya 3 Phenomenology 3 Realism 3 Science 3 Analysis (Philosophy) 2 Idealism 2 Induction (Logic) 2 Navya Nyāya 2 Perception 2 Perception (Philosophy) 2 Perplexity (Philosophy) 2 Philosophy of mind 2 Proposition (Logic) 2 Questioning 2