《论衡·卷十一·谈天篇》
昆仑山很高，山上有玉泉、华池，是世人都听说过的，至于张骞亲自到过却没有那事实。
昆仑之高，玉泉、华池，世所共闻，张骞亲行无其实。
Mount Kunlun is very high, and there are jade springs and Huachi on the mountain, which everyone has heard of. As for Zhang Qian's personal visit, there is no fact.