Latin to English translation request

The full sentence is, of course,
Aio te, Æacida, Romanos vincere posse.
This is the (literally) classic example of a prophecy that can be taken however
the hearer chooses.

It may mean either
I tell you, Æacida (Pyrrhus), that you can conquer the Romans.
or
I tell you, Æacida (Pyrrhus), that the Romans can conquer you.

Ennius reports this as a reply given Pyrrhus by the Delphic Oracle.

Thank you very much.

Given the context of where I read the phrase (it was spoken by a character in Arturo Perez-Reverte's "Captain Alastarte," who has resigned himself to the fact that his friend has successfully forced a duel no else wanted to happen), that makes a lot of sense.

Thank you also for the reference to Ennius. I love complete notes.

Whoops, that's "Captain Alatriste."

You're welcome, csewriter.