Tang Dynasty Liu Yuxi's "Ode to the Past": "The latent feeling of sincere nature, the child's heart is as suspicious as doubt." Song Dynasty Lu You's "Composition in the Garden" poem: "Laughing at oneself in front of the flowers, the childlike innocence is still there, even more accompanying A group of children playing with bamboo horses." Ming Dynasty Li Zhi's "The Theory of Childlike Innocence": "A childlike heart is absolutely pure and pure, and is the original intention of the first thought." "Mencius Li Lou Xia": "A grown-up person never loses...