One Piece Chapter 50, page 17: TO EACH HIS OWN WAY

IF YOU'RE A COMPETENT SWORDSMAN BY ANY MEANS, THEN I CAN DEMONSTRATE THE CLEAR DIFFERENCE IN STRENGTH BETWEEN YOU AND I, WITHOUT NEEDING TO CROSS BLADES AT ALL. BUT STILL, YOU DARE TO CHALLENGE ME. DOES YOUR BRAVERY COME FROM YOUR CONVICTION...? OR FROM IGNORANCE...?" Zoro ties his dark green bandana around his head and draws his swords, placing one in his mouth. He replies, "IT COMES FROM MY AMBITION, AND A PROMISE TO A FRIEND." Luffy, Johnny, and Yosaku watch in tense silence, gulping ("ゴク...!!") in anticipation.