“Kabuto: It's always easier said than done. I just said that this jutsu had no weaknesses or risk...Itachi: Every jutsu has its weakness. This jutsu's weakness and risk is...the existence of me!”
“The most important talent for a shinobi is not the numberof jutsu. The important thing is... HAVING THE GUTS TO NEVER GIVE UP.”
“The moment people come to know love, they run the risk of carrying hate.”
“To them I'm simply an object from the past that they wish will disappear Then why do I exist? Why am I alive? When I thought about this I could find no answer. But as you live you need a reason otherwise it's the same as being dead, I then came to this conclusion I exist to kill every human besides myself. Fighting only for yourself living while only loving yourself If you think that everybody else simply exist to allow you to experience that feeling nothing is better then that world. As long as there are people in this world for me to kill and continue to feel that joy of living my existence will not vanish.”
“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”
“It's nothing that complicated, I just want to kill him”
“I'm just being selfish..... I'm here on my own free will... I used to always cry and give up... I nearly went the wrong way... But you... You showed me the right way... I was always chasing you... Wanting to overtake you... I just wanted to walk with you... I wanted to be with you... You changed me! Your smile saved me! So I'm not afraid to die protecting you!!! Because I-- Love You...”