"There's something meaningful about growing things." (1.10.78)
Perry's original dream job is to be involved in gardening, to grow food and provide society with more options. This cultivating instinct becomes a part of R, too. When R eats Perry's brain, it plants a seed (see what we did there?) that becomes an idea, which leads R toward his goal of changing the world.
"You're going to be strong and beautiful and brilliant, and you're going to live forever. You're going to change the world." (1.10.149)
This line from Perry to Julie is almost as sappy as Eric Clapton's "Change the World." Almost. But once you know how Warm Bodies ends, this line turns out be a pretty big piece of foreshadowing.
"You're wrong. You f***ing monsters are wrong. About everything." (1.10.195)
R is angry here, obviously. He's angry at the world. The monsters here aren't the zombies, they're the people who readily give in to death, like it's their only choice. This anger drives R to change things.
We'll see what happens when we say yes while this rigor mortis world screams no. (1.10.239)
This quote reminds us of The Beatles "Hello, Goodbye," which is referenced a couple times in this book. R says yes, the world says no, it says stop, and R says go go go. The world says goodbye, but he says hello.
I'm fairly sure Julie's question has never, ever been asked before. (2.2.96)
Julie's question is about kissing a zombie. We'd google "kissing a zombie" to see if this has ever been asked before, but we're scared of what the results might be. Also, we don't want that saved in our browser cache. Who knew that all it takes to change the world is a little necrophilia?
"There's still hope, that we can turn things around somehow, blah f***ing blah. It's just... getting
a lot harder to believe lately." (2.2.172)
Change requires hope. Even though Julie's yellow hope wall is blank, it's still, you know, there. She may not be the best at coming up with ideas (see 2.6) but she's got hope, so that's something.
"We don't care about assigning blame for the human condition, we just want to cure it." (2.6.45)
You know when people have (or think they have) a chronic medical problem and they call it their "condition"? This is how Julie views the "human condition": as a sickness. And Dr. Julie is determined to cure it.
I know that I have a choice, and I choose to change no matter what the cost. (2.6.115)
R realizes this as he's dining on some tasty human flesh. But it's okay, it's not too late! He decides to change right then and not eat the brain. It's a start, but we can really just decide not to die and live forever? Does it seriously work that way? Maybe in the world of Warm Bodies it does.
I'm not a general or a colonel or a builder of cities. I'm just a corpse who wants not to be. (2.8.7)
The general (Julie's dad), Colonel (Rosso), and builder of cities (Perry's dad), didn't do anything but preserve the status quo. Here R learns that you don't have to be in a position of power to be an agent of change.
We will not let the Earth become a tomb, a mass grave spinning through space. We will exhume ourselves. We will fight the curse and break it. (3.1.62)
Most of the change R and Julie focus on has to do with humans. You'd think all the humans-eating-humans action might make the people a little more sympathetic toward livestock. Do you think they'll apply this change toward a vegetarian lifestyle and eternal life for other organisms, too?