These two knives are all his tools. One is a professional carving knife, and the other is a scalpel. "It is sharp and easy to use." Li Kai said. It is with these two knives that Li Kai has carved hundreds of leaves.

For Li Kai, in addition to being a hobby, leaf carving is also a way to hone his temperament. "The whole process of a work takes two months. Leaf carving has taught me to sink my heart and focus on one thing quietly." He also engraved the leaves into characters, "Endure hardship, be frugal, study hard, love the country." - these 12 characters are the motto of Chongqing University and are also the proverbs that Li Kai kept. (Translated by Gao Jiao, Fathom Language Limited)