" Katsuya Jōnouchi [to Dinosaur Ryuzaki]: You really think I can't beat him [Esper Roba]? Then I will!! Step one to becoming a true duelist — don't pass up an opponent, no matter what! Step two: Fight opponents that seem stronger than you! "

― Kazuki Takahashi , Yu-Gi-Oh! (3-in-1 Edition), Vol. 6: Includes Vols. 16, 17 18