Gustave Flaubert, "Madame Bovary", ch. 12

...exaggerated turns of speech conceal mediocre affections: as if the fulness of the soul might not sometimes overflow in the emptiest of metaphors, since no one, ever, can give the exact measurements of his needs, nor of his conceptions, nor of his sufferings, and the human word is like a cracked cauldron upon which we beat out melodies fit for making bears dance when we are trying to move the stars to pity.

Gustave Flaubert, "Madame Bovary", ch. 12