历史首先是那个遗产的创造和记录；进步是其日益增长的丰富性、保存、传递和使用。
History is, above all else, the creation and recording of that heritage; progress is its increasing abundance, preservation, transmission, and use.
自守表示的研究是数学抽象深度的反映。
成功不是终点，失败也非末日，最重要的是继续前进的勇气。
Happiness is not something you postpone for the future; it is something you design for the present.