Plutarch. Plutarch's Lives of the Noble Grecians and Romans
Englished by Sir Thomas North. Trans. Sir Thomas North. Vol. 6 (1579; London: David Nutt, 1896) 189.

     by his great victories, to consume with time. But CassiusMARCUS
     being a chollericke man, and hating Caesar privatlie, moreBRUTUS
     then he did the tyrannie openlie: he incensed Brutus againstCassius
     him. It is also reported, that Brutus coulde evill away with*incenseth
     the tyrannie, and that Cassius hated the tyranne: makingBrutus
     many complayntes for the injuries he had done him, andagainst
     amongest others, for that he had taken away his LyonsCaesar.
     from him. Cassius had provided them for his sportes, when
     he should be Ædilis, and they were found in the citie ofCassius Lions
     Megara, when it was wonne by Calenus, and Caesar keptat Megara.
     them. The rumor went, that these Lyons did marvelous
     great hurt to the Magarians. For when the citie was taken,
     they brake their cages where they were tied up, and turned
     them loose, thinking they would have done great mischiefe
     to the enemies, and have kept them from setting uppon them:
     but the Lyons contrarie to expectacion, turned upon them
     selves that fled unarmed, and did so cruelly tare some in
     peces, that it pitied their enemies to see them. And this
     was the cause, as some do report, that made Cassius con-
     spire against Caesar. But this holdeth no water. For
     Cassius even from his cradell could not abide any maner ofCassius an
     tyrans, as it appeared when he was but a boy, and wentenemie of
     unto the same schoole that Faustus, the sonne of Sylla did.tyrans.
     And Faustus bragging among other boyes, highly boasted
     of his fathers kingdom: Cassius rose up on his feete, and
     gave him two good whirts on the eare. Faustus gover-
     nors would have put this matter in sute against Cassius:
     but Pompey woulde not suffer them, but caused the two
     boyes to be brought before him, and asked them howe the
     matter came to passe. Then Cassius, as it is wrytten of
     him, said unto the other: Goe to Faustus, speake againe
     and thou darest, before this noble man here, the same
     wordes that made me angrie with thee, that my fistes may
     walke once againe about thine eares. Suche was Cassius
     hotte stirring nature. But for Brutus, his frendes andHow Brutus
     contrie men, both by divers procurementes, and sundriewas incensed
     rumors of the citie, and by many bills also, did openlieagainst Caesar.
     call and procure him to doe that he did. For, under the
     image of his auncester Iunius Brutus, that drave the kinges