sic semper tyrannis

Etymology
From the. While the line is sometimes said to have been uttered by after he assassinated, the utterance itself is recorded in no ancient sources and appears to be a modern invention. It is probably a Latin translation by the US Founding Father of what ' grandfather, the general and statesman Scipio Aemilianus, said when he heard of the assassination of his grandson. According to Plutarch (21.4), he reacted by quoting Homer's Odyssey (1.47): ὡς ἀπόλοιτο καὶ ἄλλος, ὅτις τοιαῦτά γε ῥέζοι (And so perish all who do the same). This etymology is presented by Mike Fontaine, though he mentions both Wythe and as possible translators, which is very unlikely since Wythe is famous as a Classicist whereas there is no recorded mention of Mason's knowledge of Greek.

Phrase

 * 1) Thus always to tyrants; tyrannical leaders will inevitably be overthrown.

Usage notes
supposedly uttered it when he assassinated Abraham Lincoln. This is probably the most famous use of this expression.