Elysium

“I try not to think. It interferes with being nuts -Leo Valdez”
― Rick Riordan, The Mark of Athena

“Correct." Kekrops sounded bitter, like he regretted his decision. "My people were the original Athenians--the gemini."
"Like your zodiac sign?" Percy asked. "I'm a Leo."
"No, stupid," Leo said. "I'm a Leo. You're a Percy.”
― Rick Riordan, The Blood of Olympus

“Um...is that thing tame?" Frank said.
The horse whinnied angrily.
"I don't think so," Percy guessed. "He just said, 'I will trample you to death, silly Chinese Canadian baby man'.”
― Rick Riordan, The Son of Neptune

“Behold!" Percy shouted. "The god's chosen beverage. Tremble before the horror of Diet Coke!”
― Rick Riordan, The Mark of Athena