We give into ignorance if we do not at least try to study our enemy. [What he said was true--there were many things different in this place already, that he had no context for. And he'd been trying to just ignore them but it was already not working.]

What is not seen is corruptible by unseen forces. [His kind dealt with psykers--astropaths, navigators, and the like, but it was always uneasy. As he had seen, they could be taken by the Warp, by daemons or Chaos sorcerers. ] How do you know when it is good?