“There's doubt in trying.Just do it or stop thinking.”

“If we presume that the boundary of the universe is a kind of surrounding wall,then we think like ancestors who thought there's abyss at the edge of flat earth.”

“Doubt isn't original.”

“Who the hell do you think you're, Kiddo?I don't do thinking, Sir. I simply improvise.”

“If there were people become a real threat to my family,then I would stop them from doing so in anyway I could.”

“In a fight, your doubt is a target of enemy's attack.”

“You know, I can't stop thinking about you.Oh really? Why you so obsessed about me?Because..you're so full of shit yet still alive.”