Du sucré à l’acide en passant par l’aigre- doux Saveurs, odeurs et mots d’estomac chez Proust

While the Recherche seems to bathe in flavours oscillating between the savoury and sweet, this contribution analyses the nuances of an ambivalent acidic notion, positive and dysphoric in both the literal and figurative sense. Acid is associated with sensations and science, but also with thoughts, words, and beings.