M. Tullius Cicero, Orations, The fourteen orations against Marcus Antonius (Philippics)
C. D. Yonge, Ed.

[9] There are other tortures,—others, I tell you, O you most abandoned and insane man, which are far more miserable. For in proportion as the vigor of the mind exceeds that of the body, so also are the sufferings which rack the mind more terrible than those which are endured by the body. He, therefore, who commits a wicked action is more wretched than he who is compelled to endure the wickedness of another. Trebonius was tortured by Dolabella; and so, indeed, was Regulus by the Carthaginians. If on that account the Carthaginians were considered very cruel for such behavior to an enemy, what must we think of Dolabella, who treated a citizen in such a manner? Is there any comparison? or can we doubt which of the two is most miserable? he whose death the senate and Roman people wish to avenge, or he who has been adjudged an enemy by the unanimous vote of the senate? For in every other particular of their lives, who could possibly, without the greatest insult to Trebonius, compare the life of Trebonius to that of Dolabella? Who is ignorant of the wisdom, and genius, and humanity, and innocence of the one, and of his greatness of mind as displayed in his exertions for the freedom of his country? The other, from his very childhood, has taken delight in cruelty; and, moreover, such has been the shameful nature of his lusts, that he has always delighted in the very fact of doing those things which he could not even be reproached with by a modest enemy.