Murder on the Orient Express
"When he passed me in the restaurant," he said at last, "I had a curious impression. It was as though a wild animal – an animal savage, but savage! you understand – had passed me by."
"And yet he looked altogether of the most respectable."
"Précisément! The body – the cage – is everything of the most respectable – but through the bars, the wild animal looks out."
"You are fanciful, mon vieux," said M. Bouc.
"It may be so. But I could not rid myself of the impression that evil had passed me by very close." (1.2.52-56)
"I'll tell you the truth, Mr. Poirot. I disliked and distrusted him. He was, I am sure, a cruel and a dangerous man. I must admit, though, that I have no reasons to advance for my opinion." (1.6.102)
"Ah! Quel animal!" M. Bouc's tone was redolent of heartfelt disgust. "I cannot regret that he is dead – not at all!" (1.8.16)