Annetta's lover's letter: SPOILERS
It was so beautiful and poignant, and I can really see why it affected the frigid, emotionally stunted Vittoria so much when she accidentally read it, imagining it was for her - especially the sentence about women getting married out of loneliness and fear, just like their mothers. I feel a little "in love" with the kind of man Annetta's lover seems to be, even if he was never featured in the film (just very, very quickly at the beginning, at the train station platform, when the police are driving him away and the pregnant Annetta kisses him for the last time).
Though I do wonder if such an elightened, cultured man, one with such progressive views in regards to women would indeed fail to have taught his illiterate partner to read and write, eventually. If Annetta had the presence of mind to ask the Doctor to teach her, why had she never asked her lover before?