One Piece Chapter 52, page 5: OATH

Sanji is furious and bewildered by Zoro's actions, thinking, "THAT DAMN BASTARD'S OUT OF HIS MIND! HIS ENEMY WAS THE WORLD'S STRONGEST! THE RESULT'S OBVIOUS! IF IT'S GONNA MEAN YOUR DEATH, THEN JUST THROW YOUR DAMN AMBITION AWAY!". In a brief flashback, Zoro's resolute face is shown as he recalls his resolve: "EVER SINCE I'VE DECIDED TO BECOME THE WORLD'S GREATEST SWORDSMAN, I THREW AWAY MY ATTACHMENT TO LIFE." Sanji screams out loud, "IT'S SIMPLE! JUST THROW AWAY THAT AMBITION!". Zoro falls backward off the deck and plunges into the sea with a massive splash. Mihawk calmly turns around and sheathes his sword.