You have someone in your life whom you honor and revere so much that every hurt on them is inflicted on you as well. And the closer they are to you, the greater the pain.

I never go back on my word! That's my nindo, my ninja way!

Listen.. to your motor-mouth mother..... Lovely Minato said

I've told you before. You shouldn't judge people based on appearances and your preconceptions.

We don't know what kind of people we truly are until the moment before our deaths. As death comes to embrace you, you will realize what you are. That's what death is, don't you think?

Sasuke: Snakes can sense things through temperature, and they can also do it with their sense of smell by passing the smell in the mouth." Itachi: You've learnt a lot...Dr. Snakes

There is only one will and that is the Will of Fire. The will that doesn't let you give up