Book of rites university. "Understanding the meaning by observing things" is taken from "Observing things and knowing things, then knowing things" in Book of Rites University. These two sentences have been interpreted differently in academic circles. Ignorant thoughts, where there is a will, there is a way, and knowledge can be accumulated. After "learning", I hope to "know" again. Generally speaking, students' "knowledge" must be improved repeatedly and gradually.