Diana

“Can you surf really well, then?"
I looked at Grover, who was trying hard not to laugh.
"Jeez, Nico," I said. "I've never really tried."
He went on asking questions. Did I fight a lot with Thalia, since she was a daughter of Zeus? (I didn't answer that one.) If Annabeth's mother was Athena, the goddess of wisdom, then why didn't Annabeth know better than to fall off a cliff? (I tried not to strangle Nico for asking that one.) Was Annabeth my girlfriend? (At this point, I was ready to stick the kid in a meat-flavored sack and throw him to the wolves.)”
― Rick Riordan

“Look, I need to tell you something,' I continued. The words came stumbling out of me. 'I couldnt stand it if...I dont want you to---'
Percy?' she said. 'You look like you're going to be sick.'
And that's how I felt.”
― Rick Riordan, The Titan’s Curse

“My name is Percy Jackson.
I'm twelve years old. Until a few months ago, I was a boarding student at Yancy Academy, a private school for troubled kids in upstate New York.
Am I a troubled kid?
Yeah. You could say that.”
― Rick Riordan, The Lightning Thief

“We walked on the beach, fed blue corn ships to the seagulls, and munched on blue jelly beans, blue saltwater taffy and all the other free samples my mom brought home from work.
I guess I should explain the blue food.
See, Gabe had once told my mom there was no such thing. They had this fight, which seemed like a really small thing at the time. But ever since, my mom went out of her way to eat blue. She baked blue birthday cakes. She mixed blueberry smoothies. She bought blue-corn tortilla chips and brought home blue candy from the shop. ”
― Rick Riordan, The Lightning Thief