[Discipline he has. Duty, too, in spades. Before he joined the Survey Corps, he was nothing. Dirt. Scum. A thug and a crook doing whatever he could to scrape a living and to protect his friends. It took him joining the military, and loosing those friends in the field, to see the bigger picture.

To most, "duty" is a nebulous word — it could mean many different things. But to Levi, it's simply the willingness to sacrifice anything and to do whatever is necessary for humanity to survive and prosper. The circumstances in his world are so dire that every soldier enlisted must swear by this creed. Their salute, a fist over the heart, is a constant reminder of this commitment.

These are things Levi would never tell a stranger. But it's all there somewhere in the set of his steely grey eyes.]

I've made my decisions as a soldier who's been forced to play detective, and I already told you why. There's nothing worse than watching people die for a shitty cause. I'm going to stop it, or go straight to hell trying.