The cuisine is part of the legacy of any culture, it is created by the availability and the climate of that region. Most of the dishes were either rice based or were wrapped in a rice wrapper, this is because farming of rice and other grains were the largest part of the Chinese economy prior to the industrial revolution.
Not only the cuisine but the customs and etiquette are part of that culture's legacy. At the table the Confucian principles of Li, Xiao and the five great relationships, friend/friend and older younger in particular, were very important in understanding the etiquette. One of the things we did was take turns pouring rounds of tea, and the youngest person at the table was required to pour everyone tea first and then him/herself. The idea behind Confucianism is that in order to creat a harmonious society you must maintain your Ren, or relationships, by following your Li, or ritual, and etiquette is part of Li. These same rules and customs are a legacy of China