The key is unlocked and the lock is the problem. The key that can open the lock is the useful key and the management that can solve the problem is the effective management. There are all kinds of locks and keys. Trying to open ten thousand locks with one key can only be ideal, not reality. Although the principle of the key is universal, whether it is really effective or not lies in being good at thinking. Lock has division of labor, division of labor is not separation, authorization is not loss of power. A remote control is required for authorization. Remote control should choose its important ones, grasp the leading aspects of principal contradictions and contradictions, control head, that is, control thought and behavior, and foot, that is, control resources and funds. This is the key: no matter how useful it is, no matter how complicated the operation is.
The statement "Understand the laws of things, grasp the pulse of the times and promote the development of the key" is the most appropriate summary of this passage.