Sharing requires equality concepts and mechanisms, equality, caring for others, and even the spirit of "strangers". The daily communication and common connection between people need institutional guarantees. This system is based on morals, not market exchanges. Only on the basis of equality can caring community relationships be formed. When community residents build their own sharing system, communities in the sense of value can be realized. What is the main meaning of the above text? ["Equality is important for building a community's sharing system.", 'Sharing requires equality concepts and mechanisms.', 'The realization of community in the sense of value needs to be based on institutions.', 'The construction of the sharing system is very important for the community in the sense of value.']