《明史·志·卷一》
明神宗的时候，西洋人利玛窦等进入中国，他们精通天文、历算方面的学问，阐发其中的精微奥妙之处，进行计算，制作器具，都是在此之前不曾有遇的。
明神宗时，西洋人利玛窦等入中国，精于天文、历算之学，发微阐奥，运算制器，前此未尝有也。
During the reign of Emperor Shenzong of the Ming Dynasty, Matteo Ricci and others, who were Westerners, came to China. They were well-versed in astronomy and calendar calculation, explained finer points and mysteries, made calculations, produced instruments, which had never been encountered before.