《晋书·志·第十五章》
遇到某一物体而形成新的形象，触及某一事类而生发创造的设想，周代承续殷代，由来已经很久。
遇物成象，触类兴端。周因于殷，其来已旧。
The encounter with an object to form a new image, touching on a category of things to generate a creative idea, the Zhou Dynasty inherited from the Yin Dynasty, has a long history.