SUMMARYThis essay combines the study of Humboldt's sources with a critique of the treatment of this subject in most studies of Humboldt and his linguistic thought. One crucial issue is the date of his early ‘Über Denken und Sprechen’, which is our first evidence of his mature thinking about language. This text is conventionally dated 1795, thus ruling out that Humboldt might be indebted to the anthropo-linguistic philosophy that he explored in Paris a few years later. But a host of (...) facts make the date untenable and the debt unquestionable, including incontrovertible evidence that ‘Über Denken und Sprechen’ relies on Condillac's argument for the anti-idealist principle that the distinction between subject and object is the absolute precondition for self-awareness and reflection, and thus, by the same token, for the concept of Weltansicht. ‘Über Denken und Sprechen’ also shows that Humboldt was inspired to choose Condillac's and Destutt de Tracy's argument over that of Fichte for what Berkeley disapprovingly called ‘outness’. This analysis exemplifies the critique that is advanced in this essay. (shrink)