“Is it alright to believe in the future where everyone can live in happiness?”

“What, exactly, is the happiness that can be earned by turning away from reality?”

“So that the new generation that will be born can enjoy happiness. To pay the cost we will have to shoulder corpses and cross a river of blood(Riza Hawkeye -- Fullmetal Alchemist)”

“Do you wanna play? Everyone's dead, so I got bored. Did you come to play with me?--Wrath”

“Greed may not be good, but it’s not so bad either. You humans think greed is just for money or power, but everyone wants something they can’t have.”

“It’s ironic that as scientists that don’t believe in god, were the ones that are closest to god.”

“Believe in yourself. Pick a path that you, deep down in your soul, won't be ashamed of.”