“One learns by doing”

“My dear young cousin, if there's one thing I've learned over the eons, it's that you can't give up on your family, no matter how tempting they make it.”

“I learned a long time ago: Never bet against Annabeth.”

“Grover murmured, "Well, Percy, what have we learned today?"That three-headed dogs prefer red rubber balls over sticks?"No," Grover told me. "We've learned that your plans really, really bite!”

“Hey, if you poop on my blankets...""Please. War gods do not poop on blankets..Well except for that one time..”

“Words had started swimming off the page, circling my head, the letters doing one-eighties as if they were riding skateboards.”

“Hermes gazed up at the stars. 'My dear young cousin, if there's one thing I've learned over the eons, it's that you can't give up on your family, no matter how tempting they make it. It doesn't matter if they hate you, or embarrass you, or simply don't appreciate your genius for inventing the Internet--”