Hiruzen- "When the tree leaves dance, one shall find flames. The fire's shadow will illuminate the village, and once again, tree leaves shall bud anew."
Jiriaya- "When people get hurt, they learn to hate… when people hurt others, they become hated and racked with guilt. But knowing that pain allows people to be kind. Pain allows people to grow… and how you grow is up to you."
Hashirama- "No matter what happens I will protect our… no my village. I still believe that protecting the village is the best way to protect people, shinobi, and children…! Anyone who tries to harm it, whether they are my friends, siblings or my own children… I won't forgive them."
Obito- "A real leader may let others step over his corpse… but he'll never step over his comrades'. Now I finally realised that faking one's name and letting others do everything for you is different than entrusting something to one's comrades. I'm not you. The current me is the one who wanted to become Hokage: Obito Uchiha!"
Hanzo- One last thing. People's lives don't end when they die. It ends when they lose their faith."