The power of mathematics is in its universality and its ability to transcend cultural boundaries.
The truth about a person is often hidden in the gaps between what they say and what they do.
《要图工人经济生活的安全幸福》,1919年6月
La plus grande preuve d'amour, c'est le sacrifice.
市场不能替代政府,政府也不能替代市场。