The Annals and the Histories · Ann. 15.65

There was a rumour that Sabrius Flavus had held a secret consultation with the centurions, and had planned, not without Seneca's knowledge, that when Nero had been slain by Piso's instrumentality, Piso also was to be murdered, and the empire handed over to Seneca, as a man singled out for his splendid virtues by all persons of integrity. Even a saying of Flavus was popularly current, "that it mattered not as to the disgrace if a harp-player were removed and a tragic actor succeeded him." For as Nero used to sing to the harp, so did Piso in the dress of a tragedian.

Cornelius Tacitus · trans. Church & Brodribb, 1876
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