"It's too late to regret. Reality is just…" — Tobi Quote

"People are stupid. If I don't do this, there will be no peace. Eventually, time will pass and the pain will heal. Eventually, checkmate's power will weaken and people will begin fighting again. This time, they will use the weapon themselves and once more know true pain. And for the short time, peace will come again. It will give birth to short period of peace within this endless chain of hatred. That's my wish."

— Pain · Naruto

"Wake up to reality! Nothing ever goes as planned in this world. The longer you live, the more you realize that in this reality only pain, suffering and futility exist."

— Madara Uchiha · Naruto

"I finally understand... I'm alone. I won't believe in anyone, or love anyone. I'm alone."

— Gaara · Naruto

"A rock thrown at a pole will not hit, but if one does not aim at the pole, it will hit! That is the law I used!"

— Rock Lee · Naruto

"It's because I've experienced pain in the past, that I can even consider what would be best for the future!"

— Ohnoki · Naruto

"Bitter crimson tears flow from lifeless eyes, and mingle with the endless sands... Bestowing ever greater power upon the demon god."

— Gaara · Naruto