“The ideal three stories a day are one favorite, one familiar, and one new, but the same book three times is also fine.”

“One day,' you said, 'I watched the sunset forty-three times!'And a little later you added:'You know, when one is that sad, one can get to love the sunset.''Were you that sad, then, on the day of the forty-three sunset?'But the prince made no answer.”

“The Best ideal is the true and other truth is none. All glory be ascribed to the holy Three in One.”

“If you love three people at the same time, choose the first one, because if there was a 4th or 5th one, you might still fall for them.”

“Alas," murmured Poirot to his mustaches, "that one can only eat three times a day ...”

“One beginning and one ending for a book was a thing I did not agree with. A good book may have three openings entirely dissimilar and inter-related only in the prescience of the author, or for that matter one hundred times as many endings.”