"A son must be born when he is young and strong. Don't have a son at the age of 80. Your son is not necessarily good, because you have no strength. You don't know what to do with him. If you are 40 years old and have two sons today, you can have two more. You still have a chance today. " He warned his classmates to train people earlier, so that enterprises can form an ecology. What are the benefits of ecology? Spring, summer, autumn and winter, die but not die. This is a discussion between Ma Yun and Zhang Ruimin about people in enterprise management. In addition, during this meeting, two great entrepreneurs in China mainly collided and exchanged ideas on enterprise management.