Agatha Christie said this quote
“ She breathed an enormous sigh, looked at Poirot, Looked away, and suddenly blurted out, You're too old. Nobody told me you were so old. I really don't want to be rude but - there it is. You're too old. I'm really sorry. She turned abruptly and blundered out of the room, rather like a desperate moth in lamplight. Poirot, his mouth open, heard the bang of the front door. He ejaculated: Non d'un nom d'un nom... ”