I think, Mr. Cavendish, said Poirot gravely, "that you would do well not to buoy yourself up with any false hopes. 
Poirot said happily, "Just hold on to your faith, Mr. Cavendish"
mnli hypothesis: Poirot said happily, "Just hold on to your faith, Mr. Cavendish" premise: I think, Mr. Cavendish, said Poirot gravely, "that you would do well not to buoy yourself up with any false hopes. 