名人名言 -- 祖冲之
Neimenggu daxue chubanshe (内蒙古大学出版社)
Zu Chongzhi (祖冲之, 429-500) was an astronomer, mathematician, politician, inventor, and writer during the Liu Song and Southern Qi dynasties. He was most notable for calculating the value of pi as between 3.1415926 and 3.1415927, a feat that would not be surpassed for 800 years.
"Famous people, famous words" is an educational series from 1996, presenting a number of famous persons, both Chinese and foreign, and their famous utterances.