《宋史·列传·卷一百四十二》
虞允文回答朱熹的才华不在程颐之下，于是朝廷召朱熹入京，朱熹没有来。
允文谓熹不在程颐下，遂召熹，熹不至。
Yu Yunwen replied that Zhu Xi's talent was not inferior to Cheng Yi, so the imperial court summoned Zhu Xi to enter the capital, but Zhu Xi did not come.