“Everyone thinks at some point if what they are doing has any meaning or not. Will the day come when I get what's coming to me, or not? How much influence does my existence have on the world at all, or doesn't it?”
“That, I don't want to do. You may feel that I'm currently an abnormal Nagato Yuki. That judgement is correct. But I myself cannot accept that I am abnormal... because if I do, I'll become alone. I was scared, so I tried to hide it.”
“Love is a bitter sweet taste of life, which many humans many weaknesses and sometimes their strongest weapon.”
“If another me was born somewhere else, and had led a different life, how would he feel? If there was another version of myself somewhere on the other side of the ocean, what would happen if I were able to meet him? Would I be able to be his friend? Or would the differences in our upbringing be something that I couldn't overcome? Can I understand him because he is me? Or will he be impossible to understand because he's me?”
“When you pick the only option you have to choose from, can you really call that your own decision?”
“That's human nature. We have regrets, and go on blaming ourselves forever.”
“If training hard can make you number one, then how many number one do you think this world will have!?”
“We fail. We make mistakes. But each time we do, I think we become stronger.”
“If one feels it is fun now, one will be able to enjoy life the most. Everything will change over time, so we must treasure the happy moments before us.”
“People usually don't look back to see how far they've come while they're still walking. Of course, when they come to a standstill, the more progress they've made, the more betrayed they feel by their expectations.”
“When people reach the halfway mark of a long ordeal, how do they feel? Does being only halfway there make them despair? Or do they feel relief at making it halfway there? Most people have to feel one way or the other, and both emotions create an opening in their hearts. That's why I pushed myself this far.”
“Someone saying that they are happy doesn't necessarily mean that they are happy, right?”
“Usui, you perverted, outer spaceman human being!”
“Humans continue to live in a cycle of death and destruction. Guns can't change anything. It merely creates an infinite chain of hatred and retribution.”
“The past makes you wanna die out of regret and future makes you depressed out of anxiety. So by elimination, the present is likely the happiest time.”
“When you're really in trouble, of course I'd come and help. That's what friends are for, right?”
“Pain, suffering, sadness... We all accept it, and that's why we can move forward!”