Zhuangzi took self-cultivation to extremes. In his section on "The Human World" he talked about a gigantic tree. Everybody was amazed by it, except for a famous carpenter.
在《人間世》一篇中，他提到一棵樹身足有十丈的巨木，人人駐觀稱奇，唯有一位木匠不顧而去。