Innovation is not just about creating something new, but about making what exists better.

男人害怕女人会嘲笑他们。女人害怕男人会杀了她们。

The Ethiopians say that their gods are snub-nosed and black, the Thracians that theirs have light blue eyes and red hair.

朗兰兹纲领的猜想是对下一代数学家的挑战。