Formal:
* "Listen to me, brave gentlemen."
* "I urge you to hear my words, you gallant men."
Informal:
* "Hey guys, listen up!"
* "You brave fellas, pay attention to what I have to say."
Literary:
* "Hear me, valiant souls, free and bold."
* "Gather 'round, you noble spirits, and let my words fill your ears."
The original phrase uses archaic language ("gallants," "so free") that suggests a storytelling or heroic setting. The modern translations aim to capture the sense of calling for attention and highlighting the bravery or noble spirit of the audience.