https://pixabay.com/en/angel-wing-sculpture-statue-2916248/
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“What Walks on Four Legs in the Morning, Two Legs at Noon and Three Legs in the Evening?” “Man”
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Morn: Crawls on all fours
Noon: Walks on two legs, no cane
Eve: Walks with a cane
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This is the riddle the Sphinx asks Oedipus in Sophocles’ Oedipus Rex.