Oh, man, I have so many but when I actually started to think about it, I couldn't remember specifics. Let me dig through books for a second... I read through the twenties a lot, so that is the stuff that sticks with me most.
19
Marco: "What's the deal with you, Cassie? Half the time you're giving us crap over being too ruthless or whatever. It's always, 'Oh, is this right?' and 'Oh, should we do this?' I mean, you're Miss Morality, and then when you have a bad night you just bail on us?'
...
"Fine. You have your morals and your fine feelings and all that. We'll go off and risk our lives to save the world. You just sit here and feel righteous."
22 I don't why I read the Solution over and over again, but the fury, the helplessness, the exhaustion really... not attracted me, but it clicked.
[When Rachel goes after David after David morphs Marco in the cafeteria. She confronts him and after some threats, they fight and she sticks a fork in his ear.] I fought a nauseating urge to twist the fork, to make him scream in pain.
...
I was still waiting for him to say something. Like maybe "It's okay, Rachel, no big deal." But nothing. Nothing! I wanted to scream at him: "Why did you let me go after David if you didn't think I was going to threaten him? You hypocrite!" But there wasn't time for that.
...
<Okay, okay,> David said with a laugh. <Okay, so you guys won. That's cool. I can accept that. Fine, I'll go my own way now.>
No one said anything.
27
"Someone tell the Chee and tell them they're doomed," I said. "Their only hope is a collection of idiot kids, standing around in the woods debating cable channels."
...
A cheerful thought-speak voice sang out in our heads. <Greetings, friends. We are happy to have you aboard. However, we would not want you to access this panel. It is possible that you might accidentally do yourself harm. And that would be so sad.>
Ax punched in the number six.
<That is the correct code! Our concerns were misplaced.>
...
"Oh, Marco the funny one! How's Mommy, Marco? Is she alive or is she dead? Does she scream with the Yeerk in her head? Cassie, the hypocrite? 'I don't believe in violence... except when I do.' Aximili, the pitiful, pale shadow of his dead brother? If only you'd insisted on going with Elfangor, maybe he'd have lived. Too bad. And Tobias, ah, yes, Tobias. The boy not really so trapped as a bird, eh, but too gutless to resume life as a human? And Rachel. My very favorite Animorph. Rachel, Rachel. Do you feel the adrenaline rush of murderous desire? Do you feel the urge to reach out and destroy me? Of course you do."
30
People don't understand the word ruthless. They think it means "mean." It's not about being mean. It's about seeing the bright, clear line that leads from A to B. The line that goes from motive to means. Beginning to end. It's about seeing that bright, clear line and not caring about anything but the beautiful fact that you can see the solution. Not caring about anything else but the perfection of it.
Megamorphs 3, Ax's chapter, on the beaches of Normandy during pseudo-WWII
I thought I understood humans. I understood nothing. They were mad! Lunatics. Evil, violent, destructive, hate-filled creatures.
<Ax-man! Are you hit?>
It was Tobias. I saw him, drifting, wings spread wide, above the smoke of battle.
<I am not injured,> I said. <But I must tell you: I am profoundly tired of your people.>
That's all I have now, but I've burst out into giggles over the course of my re-reading, so maybe I'll post humour shots later or something. =)