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Project Gutenberg EPUB edition
Sadi and Ross, James
They asked Lucman, the fabulist, "From whom did you learn manners?" He answered, "From the unmannerly, for I was careful to avoid whatever part of their behavior seemed to me bad." They will not speak a word in joke from which the wise cannot derive instruction; let them read a hundred chapters of wisdom to a fool, and they will all seem but a jest to him.