“That's what being a demigod was all about, not quite belonging in the mortal world or on Mount Olympus but trying to make peace with both sides of their nature.”

“If we can’t repair things with the Romans—well, the two sets of demigods have never gotten along. That’s why the gods kept us separate. I don’t know if we could ever belong there.”Percy didn’t want to argue, but he couldn’t let go of the hope. It felt important—not just for him, but for all the other demigods. It had to be possible to belong in two different worlds at once. After all, that’s what being a demigod was all about—not quite belonging in the mortal world or on Mount Olympus, but trying to make peace with both sides of their nature.”

“My girlfriend: sophomore honors student, demigod, and—oh, yeah—head architect for redesigning the palace of the gods on Mount Olympus in her spare time.”

“And this lesson about mortal peace of mind I never forgot. Even if a ghost is ripping a house to pieces, throwing in pans all over, pouring water of pillows, making clocks chime at all hours, mortal will accept almost any "natural explanation" offered, no matter how absurd, rather than the obvious supernatural one, for what is going on.”

“Art is not delivered like the morning paper; it has to be stolen from Mount Olympus.”

“Maybe that's what being real friends are all about - putting up with the hard lessons - both taught and learned together.”