24. Lastly, it is by his information that the surviving spy can be used on appointed occasions.

因是而知之故生間有使如期

Sun Tzu

The information gathered by a spy can be used strategically and tactically by a leader in order to gain an advantage in a conflict or situation. Sun Tzu emphasizes the importance of using spies effectively and judiciously in order to gather valuable information about the enemy’s strengths, weaknesses, and plans. The quote suggests that the surviving spy, or the spy who can reliably provide information on an ongoing basis, can be used as a valuable resource at key moments in order to influence the outcome of a situation.

Using information from a converted source allows a business to reserve their regular sources for more critical tasks and situations.

By utilizing the converted source’s information, a business can save their regular sources (spies) for more critical tasks and situations when it is essential to gather information. This allows the business to have a reserve spy available to be called upon at a later time when it is critical to get information. This can help the business be more efficient and effective in their operations, and can also protect the identities and safety of their regular spies.