数学家的工作是在别人看到混乱的地方发现模式。
《在北京五族共和合进会与西北协进会的演说》,1912年9月3日。
Life is composed of lights and shadows,and we would be untruthful,insincere,and saccharine if we tried to pretend there were no shadows.
I'm not perfect, but I'm trying.
The best leaders are those who know how to follow.
Collaboration is the root system of progress in sustainable forestry.