On this day, March 15th, Julius Caesar was assassinated in 44 B.C. Although it is impossible to know exactly what he should have said, if he had been aware of the impending conspiracy, he could have expressed caution and concern for his safety.
For example:
"Friends, Romans, countrymen, lend me your ears.
On this day, I sense treachery in the air.
Let us be vigilant and keep our eyes open, for one's enemies may be lurking in the shadows.
Let us work together to preserve the stability and future of the Roman Republic.
Remember, 'Audentes fortuna iuvat,' fortune favors the bold."
--Julius Caesar March 15th, 44BCE K11