Altertum (Sprachtheorie) ; Antiquity (theory of language) ; Enlightenment (theory of language) ; Medieval theory of language; Middle Ages (theory of language) ; Renaissance (theory of language) ; Empiricism ; Psychologism; Cognitivism; Kognitivismus; Mentalism ; Sprache und Denken; Erkenntnis und Sprache; Language and thought; Erkenntnistheorie; Epistemology and language; Language and epistemology ; Philosophy of language ; Indian philosophy of language