在困难中蕴藏着机会。
In the middle of difficulty lies opportunity.
The pursuit of science is more than the pursuit of understanding. It is the pursuit of a kind of wisdom that comes from knowing how much we do not know.
历史学家的任务是让死者重生。
善是无法定义的。
领导者应该具备战略眼光和宽广的世界观，以应对复杂的国际挑战。