Human evaluations are difficult, because they are all opinions. Human evaluations are very difficult. Because they are all someone’s opinions. I found it. Human vertical and horizontal evaluations are all stood on someone’s opinions. So that there is no perfect evaluation. If some consultants bring to you perfect human resource evaluation, the consultants are liars.
On September 23rd, 2022, I reflected on the importance of the estoppel principle in negotiation skills. The reason why Russia may struggle with negotiation skills is that they don't adhere to the estoppel principle. To develop strong negotiation skills, it is essential to follow the estoppel principle. Historically, Russia has acted for short-term gains, often neglecting the long-term consequences. However, this approach can result in a higher cost in the future. Therefore, it is crucial for any negotiator to consider the potential long-term consequences of their actions, and to adhere to the estoppel principle.