Leonidas: Spartans! Prepare for glory!
Daxos: Glory? Have you gone mad? There is no glory to be had now. Only retreat or surrender. Or death.
Leonidas: Well, that's an easy choice for us, Arcadian. Spartans never retreat. Spartans never surrender. Go spread the word. Let every Greek assembled know the truth of this. Let each among them search his own soul. And while you're at it, search your own.
Leonidas is telling Daxos that the choice between surrender and death is easy: death.