" When we first sat down, you said that Hell is empty and all the devils are here. What did you mean?” “It’s one of my favorite quotes, you know that,” said Stephen. And Armand did. Stephen loved to use the lines from The Tempest to unnerve business rivals, colleagues. Friends. Strangers on planes. "

― Louise Penny , All the Devils Are Here (Chief Inspector Armand Gamache #16)