Protogenes, the Greek painter, was an impatient man. In painting
a picture of a tired, panting dog, he met with satisfactory
success except that he failed in every attempt to imitate the
foam that should have been seen on the dog’s mouth. He was so
much provoked over it, that he seized the sponge with which he
cleansed his brushes, and threw it against the picture with the
intention of spoiling it. It happened to strike on the dog’s
mouth, and produced, to the astonishment and delight of the
painter, the very effect that he had labored so persistently to
imitate.--FRANK H. STAUFFER, _The Epoch_.
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