数学家的工作永远不会完成;总有新的问题需要探索,新的谜团需要揭开。
战争这种事,百年或许都用不上一次,但绝对不能有一天忘记它。
Anything truly novel is invented only during one’s youth, later one becomes more experienced more famous, and more blockheaded.
Innovation is not an option, but a necessity for survival.