Always, Always have a plan

The Olympians were a reminder that there was always someone better than you, so you shouldn't get a big head.

I know you'll do what's best for Annabeth." "How can you be sure?" "Because she'd do the same for you.

So," I (Percy) said glumly. "We're going to get a ride from your brother, huh?" Artemis's silver eyes gleamed. "Yes, boy. You see, Bianca di Angelo is not the only one with an annoying brother. It's time for you to meet my irresponsible twin, Apollo.

I Play Dodgeball with Cannibals (Chapter 2)

It wasn’t easy looking dignified wearing a bed sheet and a purple cape.

What I did next was so impulsive and dangerous I should've been named ADHD poster child of the year.