https://commons.wikimedia.org/wiki/File:Nullum_esse_librum_tam_malum,_ut_non_aliqua_parte_prodesset._Plinius_Maior,_23-79_AD_-_pt.svg
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Nullum esse librum tam malum, ut non aliqua parte prodesset.
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No book was so bad but that some good might be got out of it.
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No hay libro malo que no contenga algo bueno.
