The most dangerous phrase in the language is, "We've always done it this way."

即使在最黑暗的时刻，只要记得点亮灯光，就能找到幸福。

In mathematics, the journey of discovery is as important as the destination.

你们即将毕业，未来的工作即将展开。并非所有工作都能让你乐在其中，付出的结果并非总是能尽如人意，你们或许会日复一日地饱受煎熬。