Group 1 - Tsinghua University has reported multiple violations related to unauthorized entry and illegal passenger transport on campus, emphasizing a zero-tolerance policy towards such activities [1] - The university has highlighted four specific cases of misconduct involving faculty and students, resulting in administrative penalties and loss of privileges [1] - The institution reiterated that all individuals entering the campus must have legitimate identities and reasonable reporting, with strict prohibitions against paid entry services [1] Group 2 - The article discusses the increasing difficulty for the public to access university campuses, particularly post-pandemic, with many institutions imposing restrictions on entry [2][3] - The concept of "walls" around campuses is explored, indicating that these barriers serve not only as physical defenses but also as psychological separations, defining identities and relationships within and outside the campus [2][7] - The relationship between universities and urban communities is examined, questioning how educational institutions can better integrate with their surrounding environments and serve broader societal functions [4][29] Group 3 - The article raises concerns about the efficiency of resource allocation when public university facilities are restricted to a limited user base, suggesting that this may lead to inefficiencies [3] - It highlights the need for a balanced approach to campus management that considers both security and community engagement, rather than opting for extreme measures of either complete openness or total closure [24][27] - Examples of successful campus openness initiatives, such as those at Xi'an Jiaotong-Liverpool University, are presented, showcasing how universities can share resources with local communities while maintaining safety [25][26]