When you get an invitation to do something in the future， ask yourself: would you accept this if it was scheduled for tomorrow？ Not too many promises will pass that immediacy filter.

A mathematician's work is never done; there are always new questions to explore and new mysteries to uncover.

探索材料的拓扑特性不仅仅是理解它们当前的属性，还包括预测和设计新的功能。