My reread suggests you need at least a second read to get everything out of this jam-packed book. This feels like a turning point in Vimes' characterization - not simply the building blocks falling into place, but the cohesive nature of how he sees and acts in the world. He has doubts, that's key to his character, but the way he thinks... I now get to solidify whether this, Thud or Snuff is truly my fave of the City Watch books. Onwards!
-Exactly how angry Vimes is about the corruption that he slowly recognized in his younger years, when he didn't have the resources to fight against
-How clear the line is, his own personal moral compass, even if in practice that means he deals with a lot of gray in the every day, he knows when things are particularly bad, when you don't cross it, and would never do so, and gets to work that out verbally in instructing his younger self 5mo
-individuals can make a difference 5mo