Naruto
Itachi Uchiha is the older brother of Sasuke and one of Naruto's most tragic figures. He wiped out his own clan and let the world hate him to protect his village and his little brother. His quiet, heavy lines about reality, love, and sacrifice are why fans still quote him. Below are his real lines, each with the arc or scene it comes from.
“People live their lives bound by what they accept as correct and true. That's how they define reality. But what does it mean to be correct or true? Merely vague concepts... their reality may all be a mirage.”
“Those who forgive themselves, and are able to accept their true nature... They are the strong ones.”
“You and I are flesh and blood. I'm always going to be there for you, even if it's only as an obstacle for you to overcome. Even if you do hate me. That's what big brothers are for.”
“Don't cry, Sasuke. Your big brother is here to protect you, no matter what happens.”
“Foolish little brother. If you want to kill me, curse me, hate me, and live a long and unsightly life. Run away, run away, and cling to your pitiful life.”
“Look at me, and find in yourself what I was lacking.”
“You will become a rival to measure my vessel against.”
“You are weak. Why are you weak? Because you lack... hatred.”
“You don't ever have to forgive me. But no matter what happens to you from here on out, I will love you, always.”
“If you forget about everyone else because you now have power, you'll become arrogant and egotistical, and eventually, you will become just like Madara.”
“That's fine. To live life being hated, that's one path a ninja can take.”
“You don't become the Hokage to be acknowledged by everyone. The one who is acknowledged by everyone becomes the Hokage.”
“Never forget your friends.”
“Can you understand the pain felt by the dead who are forced to fight? The pain of the living is even greater.”