For from free Greek to free Greek the word was spread that bold Leonidas and his 300 so far from home laid down their lives not just for Sparta, but for all Greece and the promise this country holds.

20 seconds sound clip from the 300 movie soundboard.

You can hear this line at 01:47:14 in the Blu-ray version of the movie.

Quote context

[...]

- Should any free soul come across that place in all the countless centuries yet to be, may all our voices whisper to you from the ageless stones.

- Go tell the Spartans, passerby. That here, by Spartan law, we lie.

- And so my king died and my brothers died barely a year ago.

- Long I pondered my king's cryptic talk of victory.

- Time has proven him wise.

- For from free Greek to free Greek the word was spread that bold Leonidas and his 300 so far from home laid down their lives not just for Sparta, but for all Greece and the promise this country holds.

- Now, here on this rugged patch of earth called Plataea, Xerxes' hordes face obliteration!

- Just there the barbarians huddle, sheer terror gripping tight their hearts with icy fingers knowing full well what merciless horrors they suffered at the swords and spears of 300.

- Yet they stare now across the plain at 10,000 Spartans commanding 30,000 free Greeks!

- The enemy outnumber us a paltry three to one. Good odds for any Greek.

[...]