We all know that we can't expect all things to be managed by teachers on campus. We should have better self-discipline, so as to reduce the burden on teachers. If we lack self-discipline, then it is conceivable that the campus will be in chaos.
It is as if we can't cross the road safely and quickly without traffic lights when crossing a crossroads, then the campus is the same. We all hope that our campus will be beautiful and harmonious, not chaotic, so we must strengthen our self-discipline.