Here's a tip, Alyconeus. Next time you choose the biggest state for your home, don't set up base in the part that's only 10 miles wide. Welcome to Canada, idiot.

I concentrated hard and snapped my fingers. "You don't see the sword," I told the girl. "It's just a ballpoint pen." She blinked. "Um . . . no. It's a sword, weirdo.

If you’re listening to this, congratulations! You survived Doomsday. I’d like to apologize straightaway for any inconvenience the end of the world may have caused you. The earthquakes, rebellions, riots,tornadoes, floods, tsunamis, and of course the giant snake who swallowed the sun—I’m afraid most of that was our fault. Carter and I decided we should at least explain how it happened.

I've always found the second book in a series is the hardest to write.

You must forge your own path for it to mean anything.

There were a lot of answers I might've given, from "I knew that" to "LIAR!" to "Yeah right, and I'm Zeus." - Percy, after Quintus says that he is Daedalus

If you ever leave me again,’ she said, her eyes stinging, ‘I swear to all the gods-‘ Percy had the nerve to laugh. Suddenly the lump of heated emotions melted inside Annabeth. ‘Consider me warned,’ Percy said. ‘I missed you, too.