Sprache und Denken; Erkenntnis und Sprache; Language and thought; Erkenntnistheorie; Epistemology and language; Language and epistemology ; Pragmatische Kompetenz; Pragmatic competence; Communicative competence ; Double bind; Paradoxon (communication research) ; Contradiction (communication research) ; Dialethism; Lügner-Antinomie; Liar paradox; Paradoxon ; Sprachkreativität; Creativity; Kreativität; Linguistic creativity