- Master Po: The hands, Grasshopper, are the eyes and tongue of touch. Through them, a man may reach out and see another's feelings or speak his own.
- Kwai Chang Caine: Is it not sad, Master, that the hands of a man may strike a blow as well as caress?
- Master Po: Pain and pleasure are like two bells, side by side. And the voice of each makes a trembling in the other.
- Kwai Chang Caine: Are pain and pleasure, then, so alike?
- Master Po: Are the eyes and the tongue alike? We see the butterfly and an ugly wound. And the same tongue which screams also laughs.