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

Can I, then, appear as cautious and as prudent as I ought to be if I commit myself to a journey so full of enemies and dangers to me? Those men who are concerned in the government of the republic ought at their death to leave behind them glory, and not reproaches for their fault, or grounds for blaming their folly. What good man is there who does not mourn for the death of Trebonius? Who is there who does not grieve for the loss of such a citizen and such a man? But there are men who say (hastily indeed, but still they do say so), that he deserves to be grieved for less because he did not take precautions against a desperately wicked man. In truth, a man who professes to be himself a defender of many men, wise men say, ought in the first place to show himself able to protect his own life. I say, that when one is fenced round by the laws and by the fear of justice, a man is not bound to be afraid of everything, or to take precautions against all imaginable designs; for who would dare to attack a man in daylight, on a military road, or a man who was well attended, or an illustrious man?