„Leo,” Jason said, “you’re weird.”“Yeah, you tell me that a lot.” Leo grinned. “But if you don’t remember me, that means I can reuse all my old jokes…!“

— Rick Riordan
„Leo,” Hazel gasped, “I can’t—my arms—”“Hazel,” he said. “Do you trust me?”“No!”“Me neither,” Leo admitted.“
— Rick Riordan
„Leo frowned at the giant's spire. "Can't we blow it up or something?""Without me, you do not have the power," Hera said. "You might as well try to destroy a mountain.""Done that once today," Jason said.“
— Rick Riordan
„Actually,” he said, “you’re not far off. Uncle Leo brought some toys for all you good little demigods.“
— Rick Riordan
„you know festus means happy in Latin right? You want us to go save the world on Happy the dragon?"-Jason to Leo in the lost hero“
— Rick Riordan
„Just curious how much I'm going for these days," Leo said. "I mean, I can understand not being as pricey as Percy or Jason, maybe… but am I worth, like, two Franks, or three Franks?“
— Rick Riordan
„Piper gripped his hand and followed him, “If I fall, you’re catching me.” “Uh, sure.” Jason hoped he wasn’t blushing.Leo stepped out next. “You’re catching me, too, Superman. But I ain’t holding your hand.“
— Rick Riordan
„Leo: “I can’t believe I thought you were hot.”Khione’s face turned red. “Hot? You dare insult me? I am cold, Leo Valdez. Very, very cold.“
— Rick Riordan
„Run!” Piper said.“We are running!” Jason picked up the speed.“Run better!” Leo shouted.“
— Rick Riordan
„Are you the cursed kid Nemesis mentioned?" Leo asked. "But you're a girl.""You're a girl," said the girl."Excuse me?“
— Rick Riordan
„No!" Leo yelled."Uhhh," Nico groaned from the floor."Piper!" Jason cried."Monkey!" Frank yelled."Not monkeys," Hazel grumbled. "I think those are dwarfs.""Stealing my stuff!" Leo yelled, and ran for the stairs.“
— Rick Riordan
„You’re that lady,” Leo said. “The one who was named after Caribbean music.”Her eyes glinted murderously. “Caribbean music.”“Yeah. Reggae?” Leo shook his head. “Merengue? Hold on, I’ll get it.”He snapped his fingers. “Calypso!“
— Rick Riordan
„Narcissus turned and scowled at Leo. “Who are you?”“I’m the Super-sized McShizzle, man!” Leo said. “I’m Leo Valdez, bad boy supreme. And the ladies love a bad boy.“
— Rick Riordan
„anyway. Leo said, I hope you've got your worksheet, 'cause I used mine for spit wads days ago. Why are you looking at me like that? Somebody draw on my face again?“
— Rick Riordan
„Cool" Leo said. "I always wanted a sister who could beat me up.“
— Rick Riordan
„Is that me?,' Leo said. 'Like me--having this dream--looking at me having a dream?“
— Rick Riordan
„Ah, Senor Zhang," Leo said, "you know how you're always saying, 'Leo, you are the only true genius among demigods'?""I'm pretty sure I never said that.“
— Rick Riordan
„Leo couldn't help smiling. "That could be fun.""Fun" she said unhappily."Blue elephants.""Blue elephants.""Kiss me you fool.""You fool.“
— Rick Riordan
„Dude." Jason gave Percy a bear hug."Back from Tartarus!" Leo whooped. "That's my peeps!“
— Rick Riordan