“Well, of course, Gwenda dear, you can always do that when you’ve exhausted every other line of approach, but I always think myself it’s better to examine the simplest and most commonplace explanations first.”
Sleeping Murder (1976)
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Agatha Christie 320
English mystery and detective writer 1890–1976Related quotes

“If you always do what you’ve always done, you’ll always get what you’ve always got.”

Letter to Leopold Mozart (Paris, 29 April 1778), from Mozart: The Man and the Artist, as Revealed in his own Words by Friedrich Kerst, trans. Henry Edward Krehbiel (1906)
Variant: I will prove myself strong when they think I am sick. I will prove myself brave when they think I am weak -Cady Sinclair
Source: We Were Liars

“Perfection does not exist -- you can always do better and you can always grow.”