What should I write as an inscription on the slogan on the screen wall of the rural central street?

Please refer to: The idiom includes "side door heresy", which academically refers to unorthodox religious sects. This shows that the side door is not good. For example, in Beijing, the street gate should be placed in the middle. However, once you enter the courtyard, a wall should be built 2 meters away, commonly known as the "screen wall". It is 2 meters high and about 3 meters wide, so that the north room cannot be seen from the outside. Yes, its purpose is to prevent outsiders from snooping into the yard.