In times of change, the ability to learn is far more important than the ability to know.
在变革时期,学习的能力远比知道的能力重要得多。
在桂林学界迎会的演说,1922年1月22日
"Ink is my favorite language - it speaks in shadows and light."
数学让我们看到支配周围世界的隐藏结构。
The concept of a legal right is a complex one, involving not only the existence of a rule but also the existence of a remedy.