Ironhide: Why are we fighting to save the humans? They're a primitive and violent race.
Optimus Prime: Were we so different? They're a young species. They have much to learn. But I've seen goodness in them. Freedom is the right of all sentient beings. You all know there's only one way to end this war: we must destroy the Cube. If all else fails, I will unite it with the spark in my chest.
Ratchet: That's suicide! The Cube is raw power, it could destroy you both!
Optimus Prime: A necessary sacrifice to bring peace to this planet. We cannot let the humans pay for our mistakes. It's been an honor serving with you all.
Megatron: Humans don't deserve to live!
Optimus Prime: They deserve to choose for themselves!
Megatron: Then you will die with them!
Megatron: JOIN THEM IN EXTINCTION!
Optimus Prime: It's you and me, Megatron...
Megatron: No, it's just ME, Prime!
Optimus Prime: At the end of this day, one shall stand, one shall fall!
Megatron: You still fight for the weak! That is why you lose!