Mei's comparative studies of Chinese and Western mathematics and astronomy expanded on the earlier work of XuGuangqi (1562~1633).
梅文鼎对中西数学和天文学的比较研究是以徐光启（1562一1633 ）的著作为基础的。
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If you go to visit one of my favorite places here in Shanghai in Xuhui, XuGuangqi Memorial, you can see Matteo Ricci and XuGuangqi talking about astronomy with Galileo telescope.
"If these books had been published five years earlier, I might have avoided some problems," said Xu Jun, an HR manager at Guangqi Honda Automobile Company.