" ...I heard him say that he knew that he had been very stupid and that he would not be stupid again. Those were his very words, Mma, and I wrote them down on a piece of paper which we can keep in the office here and take out and wave at him some time in the future if we need to do so. "

― Alexander McCall Smith , In the Company of Cheerful Ladies (No. 1 Ladies' Detective Agency #6)