“Someone with inborn talent isn't happy. It's those who have worked hard for someone precious to them and who can be hot-blooded that are happy."
-Gai Sensei: Naruto Episode 196”

“There isn't one thing in the world hot and hard as knowing there's someone waiting, coming, pressing, wanting you.”

“Someone who's on top of the world isn't much of an observer: happy people are poor psychologists. But someone who's troubled about something is on the alert. The perceived threat sharpens his senses - he takes in more than he usually does.”

“How can someone say they’re successful if they’re not happy doing their work?”

“I was a fool! Loving someone who doesn't love you is hell! Don't ever let anyone convince you that you can be happy with someone who doesn't love you.”

“People love a happy ending. So every episode, I will explain once again that I don't like people. And then Mal will shoot someone. Someone we like. And their puppy.”

“those who do not know how to see the precious things in life will never be happy.”

“She said, "We're detectives" in the tone of voice that someone might say, "Making you happy isn't making me happy"”

“Allowing someone else to make us happy will make them happy too.”

“A beautiful thing is precious, no matter the price. Those who do not know how to see the precious things in life will never be happy…”