“It hurts to care! It hurts so much to care!”

“The ability to hurt someone is usually in direct proportion to how much that person cares about you.”

“Don't be careful. You could hurt yourself.”

“Cal, the world is full of gulpins who don't care who they hurt.”

“You know, you've never really cared about anyone," he said. "But someday you will, and it's going to hurt. It's going to hurt a lot.”

“I can't trust the people I care about not to hurt me. And I'm not sure I can trust myself not to hurt them, either.”

“Jace knew he was being cruel, and he barely cared. Hurting people he loved was almost as good as hurting himself when he was in this kind of mood.”

“Mingling with people, hurting them, getting hurt by them…that's how you learn about others…and about yourself. If you don't you'll never be able to care about anyone but yourself.”

“When a dream is born in you
With a sudden clamorous pain,
When you know the dream is true
And lovely, with no flaw nor stain,
O then, be careful, or with sudden clutch
You'll hurt the delicate thing you prize so much.”

“Having a brain hurt so much sometimes.”