He looked like those paintings of baby angels - what do you call them, hubbubs? No cherubs. That's it. He looked like a cherub who'd turned middle-aged in a trailer park.

It's not bad enough I am exiled? It's not bad enough you take away the few good heroes I'm allowed to meet? You think it's funny to send me this this ― this charbroiled runt of a boy to ruin my tranquility? This is NOT FUNNY! Take him back!

This is Leo. I'm the... What's my title? Am I like, admiral, or captain, or..." "Repair boy." "Very funny, Piper.

Ceres wanted a united front in the plant war." "The plant war," Percy said. "You're going to arm all the little grapes with tiny assault rifles?

Nothing lasts forever. But the thing is, you can reuse some. Use your mind. - Leo's Mother, The Lost Hero

All invincible and stuff

If I'm dead," he murmured. "Why does it hurt so much?