"What is Etiquette? This is a very broad question. However, we shouldn't stop studying it because it's very important. Etiquette is as mysterious and far away as the Firmament. But should we stop exploring and studying the Firmament? Should we stop being curious about it? The answer is no. On the contrary, we observe clouds and wind in the day and study stars and the darkness at night. We want to know what the firmament really is and what is above it."
"To answer a broad question in a way that we can understand, a concrete answer is needed, and that requires us to pay attention to the details. Just as when we study the stars, we focus on the movement of them and draw the beautiful and fixed lines down, which in the end becomes the subject of astrology."