Harry Potter and the Deathly Hallows Theme of Perseverance

The real action of this book all happens in its last few chapters – up until then, it's a looooong slog for Harry, Ron, and Hermione as they try and figure out how to destroy Voldemort. However, they're not the only ones who've got to stay focused in the name of a long-term goal. Basically, all of the intertwining stories that emerge here are about keeping the faith and staying true to a mission, whether it's Snape's undying determination to stay true to Lily's memory, or Dumbledore's eternal quest for the Deathly Hallows. Perseverance is the name of the game, and all of our characters play it.

1. Perseverance is one of the most honorable character traits we see here (for example, when Ron doggedly finds his way back by using the Deluminator). What are some others?
2. Does the whole Harry-Voldemort thing really boil down to a question of who's simply more determined to find a creative way to win?
3. Many characters besides Harry persevere through tough situations in this book – what are some other examples of admirable perseverance that you observed?