"Taci, ingiusto core!"
"Ah, be still, unreasonable heart! Do not pound in my breast! he is a wicked man, he is a betrayer, it is wrong to have pity . . . ."
[Mozart's Don Giovanni II.1: Donna Elvira singing from her balcony, who is in fact being tricked by Don Giovanni (who has switched cloaks with his servant Leporello in the garden below).]