"I love only myself and fight only for myself. And as long as I think everybody exists to make me feel that way... the world is wonderful... a soul needs a purpose to live, and so I concluded that my purpose was to kill everyone besides myself. I felt alive... "

"People cannot win against their loneliness."

"Loneliness is this world's worst kind of pain. "

"The corpse's bitter, crimson tears flow, and mingle with the endless sand. Feeding the chaos within me, and making me stronger. "

"As long as there are people in this world to kill, I will not cease to exist."

"I took the life of the woman I was supposed to call mother in the process of being born... in order to become the world's strongest shinobi... an incarnation of sand was implanted inside of me... "

"When you feel that the one you admire is disgraced, you are terribly hurt as well and become enraged. The more precious the person you worship is to you... Fighting for those important to you... He was... the same as Uzumaki Naruto. But just because someone is important to you doesn't necessarily mean that person is good. "

"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"

"Even if you knew that person was evil, people cannot win against their loneliness. "

"To feel so strongly for someone you would fight for them... and die for them... You and Naruto Uzumaki have that in common. However, what if this person you would honor and die fr is not a virtuous person? "

"Perhaps the companionship of an evil person is preferable to loneliness. "

Itachi Uchiha:

"Foolish little brother. If you want to kill me, hate me, detest me, and survive in an unslightly way. Run, run and cling to life. And then some day, when you have the same eyes as I do, come before me. "

"Even the strongest of opponents always has a weakness. "

"We are unique siblings. I am the barrier you must overcome, so you and I will continue to exist together."

"This is what happens when you are skilled. Power causes you to become isolated and arrogant. "

"I've lost all hope for this pathetic clan. "

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