命名某物就是让它存在，给它一个在世界上的位置。

Sustainability isn't an option; it's a responsibility we owe to future generations.

It is often said that before you die your life passes before your eyes. It is in fact true. It's called living.

在数学中，旅程和目的地同样重要，因为正是通过发现的过程，我们才能真正学习。