"创始人忘记的一件事是，在他们雇佣员工之后，他们必须留住他们。"

Simplified Meaning:

When a business starts growing, the people who set it up often focus on hiring new workers. But getting workers isn't enough; they also need to make sure those workers are happy so they stay with the company. If workers leave soon after being hired, it can cause many problems for the business. Imagine building a sports team. First, you need to find good players, but that's just the beginning. After you've got your team, you need to train them, keep them motivated, and make sure they enjoy being part of the team. If you ignore their needs, they could leave and join another team. This means you'll have to start over with finding and training new players, which is a lot of work and can hurt the team's performance. In the same way, business founders need to pay attention to their employees even after hiring them. Providing good working conditions, fair pay, recognition for their hard work, and opportunities for growth can help keep employees satisfied and loyal to the company. This reduces turnover and helps the business run smoothly and grow more successfully.