《后汉书·列传·儒林列传上》
这时，中山角圭阳鸿，字孟孙，也用《孟氏易》教授学生，有名气，永平中为少府。
时，中山觟阳鸿，字孟孙，亦以《孟氏易》教授，有名称，永平中为少府。
At this time, Zhongshan Jiao Guiyang Hong, named Mengsun, also used "Meng's Yi" to teach students, was famous, and was a young minister in the Yongpingzhong period.
<s>[INST] Kindly elucidate the central themes in this passage in English: 时，中山觟阳鸿，字孟孙，亦以《孟氏易》教授，有名称，永平中为少府。 [/INST] At this time, Zhongshan Jiao Guiyang Hong, named Mengsun, also used "Meng's Yi" to teach students, was famous, and was a young minister in the Yongpingzhong period.</s>
Kindly elucidate the central themes in this passage in English: 时，中山觟阳鸿，字孟孙，亦以《孟氏易》教授，有名称，永平中为少府。
user
At this time, Zhongshan Jiao Guiyang Hong, named Mengsun, also used "Meng's Yi" to teach students, was famous, and was a young minister in the Yongpingzhong period.
assistant