This is kinda URGENT: pretty please answer soon
Hi!
I'm writing an essay and need help with a closing clincher sentence

the essay is on the book Divergent, and is about how Mrs. Prior (Tris's mother) is the bravest and most selfless character in the book.
if it would help to skim part of the conclusion, here's some:
"It takes selflessness to do this all while holding her head high and thinking not of herself making it out, but her daughter making it through, and being together with her father and brother again. Even if it’s without her. I doubt even Tris or Four would be able to do this. Especially not alone. Yet Mrs. Prior could. Without the bravery and selflessness and Natalie Prior’s actions, the events in this novel would not be possible. Tris would’ve drowned, Four most likely never would have been released from his simulation, and Dauntless and Erudite would have had a complete take over. Natalie Prior’s death was pivotal to Tris’s character, pushing her to be brave and shut down Jeanine Matthews’s simulation. "

i really just need one sentence to wrap it up, I've been going on and on, and I just feel none of it makes a good closing.

Thank you!