And, while the subject of quotes is in the air, the source of this one has always eluded me. Famously (or infamously) trumpeted by John Wilkes Booth just after he’s shot Lincoln, the full version is (according to Wikipedia), Sic semper evello mortem tyrannis and it’s attributed to Brutus, one of Julius Caesar’s assassins. But attributed by whom and when? On this every site I’ve checked has been silent, other than telling us it’s not in our principal sources for the era (Cicero, Velleius Paterculus, Suetonius, Plutarch, Appian, et al. So where did this come from?