我们写的每一个字都是朝着理解自己和周围世界迈出的一步。

The key to financial reform lies in optimizing resource allocation and improving service efficiency.

If time travel is possible, where are the tourists from the future?

The key to managing complexity is to focus on the interfaces between components, not their internal details.

世界上发生的任何事情，其意义无非是某些极大或极小值。

算法的发展既是一门艺术，也是一门科学。