When I Saw You I Fell in Love, and You Smiled Because You Knew

William Shakespeare? Arrigo Boito? Jeane Westin? Anonymous? Dear Quote Investigator: I have a question about a quotation depicting communication between lovers. The following words are often ascribed to William Shakespeare: When I saw you I fell in love, and you smiled because you knew. Sometimes the play Romeo and Juliet is named as the source, …