“Oh, I see,” Poseidon said. “A shame. I quite like blow-fish. I am Poseidon.”
“Poseidon? That’s an interesting name.”
“Yes, I like it. I’ve gone by other names, but I do prefer Poseidon.”
“Like the god of the sea.”
“Very much like that, yes.”

“Poseidon held out his arms and gave me a hug. I realized, a little embarrassed, that I'd never actually hugged my dad before. He was warm—like a regular human—and he smelled of a salty beach and fresh sea air.”

“Your uncle," Poseidon sighed, "has always had a flair for dramatic exits. I think he would've done well as the god of theater.”

“What if it lines up like it did in the Trojan War… Athena versus Poseidon?"
"I don't know. But I just know that I'll be fighting next to you."
"Why?"
"Because you're my friend, Seaweed Brain. Any more stupid questions?”

“Percy was getting tired of water.
If he said that aloud, he would probably get kicked out of Poseidon’s Junior Sea Scouts, but he didn’t care.”

“Son of Poseidon? East asked. I nodded. Took a dip in the Styx? Hudson asked. Yep. They made digusted sounds. Well that's perfect East said. Now how do we kille him?”

“There was Tyson moving into the Poseidon cabin, giggling to himself every fifteen seconds and saying, "Percy is my brother?" like he'd just won the lottery.

Aw, Tyson," I'd say. "It's not that simple.”

“Your former friend Luke " Poseidon corrected. "He once promised things like that. He was Hermes's pride and joy. Just bear that in mind Percy. Even the bravest can fall.”

“Tyson, Frank is a descendant of Poseidon."
"Brother!" Tyson crushed Frank in a hug.
Percy stifled a laugh. "Actually he's more like a great-great-… Oh, never mind. Yeah, he's your brother."
"Thanks." Frank mumbled through a mouthful of flannel.”

“Personally, I quite like that. Such stupid gallantry.
Yes. I like that a lot.”