Knowledge, Theory of 52 Philosophy, Modern 13 Philosophy 12 Philosophy-History 12 History 9 Language and languages-Philosophy 7 Metaphysics 7 more ... Philosophy of mind 6 Analysis (Philosophy) 5 Epistemology 5 Ethics 5 Science-Philosophy 5 Genetic epistemology 4 Logic 4 Philosophy (General) 4 Religion-Philosophy 4 Biology-Philosophy 3 Ontology 3 Phenomenology  3 Applied linguistics 2 Knowledge, Theory of (Religion) 2 Language and languages 2 Mathematical logic 2 Mathematics 2 Philosophy of nature 2 Philosophy, Ancient 2 Philosophy, Medieval 2 Political science-Philosophy 2 Science 2 Social sciences 2 less ...