祸兮福之所倚，福兮祸之所伏
灾祸中依存着幸福，幸福中潜伏着灾祸
A mathematician's work is never done; there are always new questions to explore and new mysteries to uncover.
——在上海中国国民党本部会议演说，1920年11月4日
The best way to find out if you can trust somebody is to trust them.
The most dangerous myth in fishing is that there will always be more fish.