6. Van Gogh is referring to the article ‘Les décadents’ by
Adrien Frissant, which had been published in instalments in
Le Forum Républicain of 3, 10 and 24 February and 3 March 1888. Frissant ridicules the basic principles, use of language and the conduct of the ‘Ecole décadente’, attacking in particular the incomprehensibility of symbolist poetry. In the last instalment he quotes the poet René Ghil, who had written in his foreword to his
Légendes d’âmes et de sang not to seek words ‘which narrate’ but rather words ‘which impress’. Frissant therefore speaks of ‘the “Impressionist” language’ to which Van Gogh refers.