"I'm not gonna run away, I never go back on my word! That's my nindo: my ninja way!"
"I'm not gonna take back my words. That's my way of the ninja!"
"When people are protecting something truly special to them, they truly can become... as strong as they can be."
"I'm not gonna die, sensei, because... I don't wanna die without proving that I'm something special."
"I'm not gonna give up. Because I'm not just fighting for myself. I'm fighting for my friends, too!"
"I'm the only one who can change myself."
"It's foolish to fear what we've yet to see and know."
"Believe it!"
"It's almost unbearable, isn't it... the feeling of being all alone? I know that feeling. I've been there, in that dark and lonely place, but now there are others, other people who mean a lot to me. I care more about them than I do myself, and I won't let anyone hurt them."
"The pain of being alone... is not an easy one to bear. Why is it... that I can understand your pain? But... I already have many people who are important to me now... and I can't let you hurt any of them."