
“A remarkably modest statement of his is recorded in the Proceedings of the Senate: "If So-and-so challenges me, I shall lay before you a careful account of what I have said and done; if he should continue, I shall reciprocate his dislike of me."”
Exstat et sermo eius in senatu percivilis: "Siquidem locutus aliter fuerit, dabo operam ut rationem factorum meorum dictorumque reddam; si perseveraverit, in vicem eum odero."
Source: The Twelve Caesars, Tiberius, Ch. 28