《后汉书·列传·张衡列传》
考其研究天地，天地的灵气无所蕴蓄；用心机械，没有人能比得上他的智慧。
推其围范两仪，天地无所蕴其灵；运情机物，有生不能参其智。
If you examine his research on heaven and earth, the spiritual qi of heaven and earth could not be hidden from him; if you examine his intent on mechanics, no one could match his wisdom.