Quote 1
'I want everyone watching – whether you're on the Capitol or the rebel side – to stop for just a moment and think about what this war could mean. For human beings. We almost went extinct fighting one another before. Now our numbers are even fewer. Our conditions more tenuous. Is this really what we want to do? Kill ourselves off completely? In the hopes that – what? Some decent species will inherit the smoking remains of the earth?' (2.56)
In this speech, Peeta asks for the fighting to stop. Other context in this chapter reveals that these aren't Peeta's ideas, but President Snow's – Peeta is being forced to speak for the Capitol. If the fighting stopped, the rebels would be destroyed. However, Katniss seems to realize that Peeta might mean the opposite of what he's saying here, that the rebels should fight, and that she should step forward to lead them.
Quote 2
"Who cares? He's dead, isn't he?" Tears begin to run down Peeta's face. "I didn't know. I've never seen myself like that before. Katniss is right. I'm the monster. I'm the mutt. I'm the one Snow has turned into a weapon!" (21.5)
Imagine what it's like to not even be able to trust yourself; to think you're fighting for one side when you've already been "turned into a weapon" by another. That's the situation Peeta's been placed in. It's hard for him to even know who he is any more, and it's terrible to realize that he's endangered other people on the rebels' side – he's no longer just a person but also a walking weapon.
Quote 3
"I think... you still have no idea. The effect you can have." He slides his cuffs up the support and pushes himself to a sitting position. "None of the people we lost were idiots. They knew what they were doing. They followed you because they believed you really could kill Snow." (23.54)
Once again Katniss has underestimated the power and authority she holds – "[t]he effect [she] can have." She's a dangerous warrior whom other people trust and put their faith in, a person whom other people are willing to die to protect and serve. She's a real, natural leader in ways that people like Snow or Coin never will be.
Quote 4
"No," he says. "Don't [take off the handcuffs]. They help hold me together."
"You might need your hands," says Gale.
"When I feel myself slipping, I dig my wrists into them, and the pain helps me focus," says Peeta. (23.9-11)
Peeta shows courage here through his willingness to remain restrained. He doesn't want to be released because he doesn't trust himself. Yet, if he were released, he'd be better able to defend himself in the event of another attack – which could occur at any time. The fact that he's willing to risk that, to give up that self-defense, shows his bravery.
Quote 5
"I'm not sure exactly. The one thing that I might still be useful at is causing a diversion. You saw what happened to that man who looked like me," he says. (24.26)
Yet again, Peeta steps bravely forward. He's still not fully recovered from being hijacked and yet he's determined to "be useful" doing the "one thing" that he still <em>can</em> do to help. That's giving himself up so the other rebels, including Katniss, can get through and get closer to Snow.
Quote 6
"We were outside at the end of the day. I tried to catch your eye. You looked away. And then... for some reason, I think you picked a dandelion." I nod. He does remember. I have never spoken about that moment aloud. "I must have loved you a lot."
"You did." My voice catches and I pretend to cough.
"And did you love me?" he asks.
I keep my eyes on the tiled floor. "Everyone says I did. Everyone says that's why Snow had you tortured. To break me." (16.83-86)
In this poignant moment, Peeta struggles to recapture his feelings and memories after being hijacked. Yet he seems more ready to admit those feelings than Katniss, who <em>wasn't</em> hijacked. When asked directly if she loved him, Katniss sidesteps the question and explains that "everyone" else "says" that she did. The words and actions of all the people around her point to and explain this love. But she herself is unable to admit it.
Quote 7
"Never underestimate the power of a brilliant stylist," says Peeta. (24.36)
As he used to, Peeta's able to twist his words to smooth out a situation and make everything better. He compliments Tigris and is able to pay her, in a certain sense, for helping the rebels out. The fact that the rebels need a stylist's help reinforces the parallels between the situation they're in and the ones Peeta and Katniss endured during the Games. Then, as now, they needed the battle armor that could only come from a "brilliant stylist." It's no accident that "brilliant" is the same word Katniss used to describe Cinna (1.34).
Quote 8
Caesar leans in to him a little. "I think it was clear to all of us what your plan was. To sacrifice yourself in the arena so that Katniss Everdeen and your child could survive."
"That was it. Clear and simple." (2.23-24)
Here, Peeta continues to send a message that he's an innocent figure who would "sacrifice" himself to save Katniss's life. And, whatever else might be true or disguised in his speech with Caesar – whatever else might be propaganda that he has to say – it's pretty obvious that he would sacrifice himself for Katniss, just as she would do the same for him.