A

“Being hurt inevitably breeds feelings of hatred towards your attacker. But when we hurt others, we have to deal with their hatred for us, and our own feelings of guilt. Knowing what it feels like to be hurt is exactly why we try to be kind to others. That’s what makes us humans.”
― Masashi Kishimoto

“I think of you as a friend. I used to think "friend" was just another word... Nothing more, nothing less. But when I met you, I realized what was important was the word's meaning.”
― Masashi Kishimoto, Naruto, Band 11

“There are many types of monsters that scare me: Monsters who cause trouble without showing themselves, monsters who abduct children, monsters who devour dreams, monsters who suck blood... and then, monsters who tell nothing but lies. Lying monsters are a real nuisance: They are much more cunning than others. They pose as humans even though they have no understanding of the human heart; they eat even though they've never experienced hunger; they study even though they have no interest in academics; they seek friendship even though they do not know how to love. If I were to encounter such monsters, I would likely be eaten by them... because in truth, I am that monster.”
― L Lawliet

“The most important talent for a shinobi is not the numberof jutsu. The important thing is... HAVING THE GUTS TO NEVER GIVE UP.”
― Masashi Kishimoto, Naruto, Vol. 19: Successor