《论衡·卷十一·谈天篇》
像五岳的山顶都不能高达天上成为顶天的柱子，那像不周山能高达天上吗？
如五岳之巅，不能上极天乃为柱。如触不周，上极天乎？
Even the peaks of the Five Mountains cannot reach the sky and become the pillars supporting the sky. Can Mount Buzhou reach the sky?