The most important thing is to keep the most important thing the most important thing.

The key to understanding human cognition is to understand how symbols are manipulated.

我不是信徒，我是怀疑论者。

The quality of an organization is determined by the quality of its services.

解释：想要变得刚强，必定先要保持柔和；想要变得强大，一定先要保持弱小。