The Roman History · Amm. 16.5.10

When he was compelled, as being a prince, to apply himself to the study of military discipline, having been previously confined to lessons of philosophy, and when he was learning the art of marching in time while the pipes were playing the Pyrrhic air, he often, calling upon the name of Plato, ironically quoted that old proverb, "A pack-saddle is placed on an ox; this is clearly a burden which does not belong to me."

Ammianus Marcellinus · translated by C. D. Yonge · 1911 reprint
C. D. Yonge translation (preface dated February 1862); G. Bell and Sons, 1911; Project Gutenberg #28587
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