I thought I had saved him. [Thrall hesitates. He can't lie, won't lie to Hiro.] In truth, Grom saved us all... at the cost of his life.

[Thrall is a bit concerned by Hiro's shift toward wanting to fight. Still, he knows there are good reasons to fight, and there are bad ones.]

Is it simply a matter of being self-reliant, or are you driven by something else? If you fight, you risk your life and you risk your entire world. It isn't a decision to be made lightly.