History of linguistics (20th century) ; Cognitive science ; Consciousness (cognitive science) ; Self-knowledge; Selbsterkenntnis; Self concept ; Belief/false belief (cognitive science) ; Überzeugung (Kognitionsforschung) ; Propositional attitude ; Psychologism; Cognitivism; Kognitivismus; Mentalism ; Sprache und Denken; Erkenntnis und Sprache; Language and thought; Erkenntnistheorie; Epistemology and language; Language and epistemology ; Wahrnehmung und Sprache; Perception and language; Wahrnehmung (Erkenntnistheorie) ; Perception (epistemology) ; Language and perception ; Philosophy of language ; Analyticity ; Truth theory ; Self-reference ; Semantik (Theorie) ; Semantic theory; Theory (semant.) ; Truth condition