Don’t let a salesperson collect sales money, as it can lead to corruption. While corruption involves the human mind, the structure is more important. If a salesperson is trying to increase their salary by improving their performance, they may resort to hiding unfavorable payment terms. However, a salesperson can hardly succeed if sales and money collection are separated. Do not leave fish to cats. - Joseph’s “just my thoughts”
Certificates are often more valuable in proving "there is none" than in proving "there is one." For example, a birth certificate is more beneficial in proving the only person in the world by proving an unborn existence like him or her than in proving the person's existence. That is, proof of absence is more valuable than proof of existence. We don't know where value comes from. What is the real element of our existence and our occupation? - Joseph's "just my thoughts"