Whom none could overcome with iron or gold.

Quem nemo ferro potuit superare nec auro.

Original text (Latin)

Notes from Wikiquote

As quoted by Cicero in De Re Publica, Book III, Chapter IV | Note: Iron is a metonym for sword/warfare, and gold for money/bribery.

Quote text and notes from Wikiquote: Ennius (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.