"Jason scratched his head. "You named him Festus? You know that in Latin, ‘festus’ means ‘happy’? You want us to ride off to save the world on Happy … - Rick Riordan

"You speak horse?" Hazel asked.
"Speaking to horses is a Poseidon thing," Percy said. "Uh, I mean a Neptune thing."
"Then you and Arion should get along fine," Hazel said. "He's a son of Neptune too."
Percy turned pale. "Excuse me?"

Rachel: They asked me a lot of questions about you. I played dumb.
Annabeth: Was it hard?

"It'll be dangerous," Nyssa warned him. "Hardship, monsters, terrible suffering. Possibly none of you will come back alive."
"Oh." Suddenly Leo didn't look so excited. Then he remembered everyone was watching. "I mean... Oh, cool! Suffering? I love suffering! Let's do this."