- Kira Yukimura: Dad, are you sure about this? I mean, how am I supposed to help my friends if I can't fight?
- Ken Yukimura: You still know how to fight.
- Kira Yukimura: But I'm better with the sword.
- Ken Yukimura: Then, as a teacher and a lover of history, maybe I can inspire you with a quote.
- Kira Yukimura: Oh, God.
- Ken Yukimura: Napoleon said, "There are only two forces in the world: the sword and the spirit. In the long run, the sword will always be conquered by the spirit."
- Kira Yukimura: I thought it was the spirit I was trying to conquer.
- Ken Yukimura: Your spirit, Kira. You're still stronger than the fox. Remember that.
- Kira Yukimura: But I'm useless without a weapon. I'm useless to my friends.
- Ken Yukimura: You always have a weapon, the most powerful one of all.
- Kira Yukimura: If you tap me on the forehead and say, "Your mind is your most powerful weapon," I'm going to scream.
- Ken Yukimura: I wasn't going to tap you on the forehead, but, the sword is a gateway to the fox. The fox is too dangerous. Your mind is a weapon, Kira. Trust yourself. You can outfox the fox.