It's not that my son gave up his life for his country. It's just that I never told him that I loved him the most. That he stood by me with honor. That he was all that was best in me.
22 seconds sound clip from the 300 movie soundboard.
You can hear this line at 01:25:49 in the Blu-ray version of the movie.
Quote context
[...]
- No retreat, no surrender. That is Spartan law. And by Spartan law, we will stand and fight and die.
- I have lived my entire life without regret until now.
- My heart is broken for your loss.
- Heart? I have filled my heart with hate.
- Good.
- But, sire, I am fit and ready for battle.
- That you are, one of the finest. But you have another talent unlike any other Spartan.
[...]