How to write a tactful sign that prohibits entry?

No entry allowed warm slogans:

1. Safety is connected to you, me and him, and safety and happiness depend on everyone.

2. To make your car run, the car must be in good condition; don’t drive too fast and wear your seat belt; go out early so you don’t worry about traffic jams; drive politely and look more at intersections; change the lights frequently when driving at night , the distance between vehicles should be moderate; always think about safety, and peace will always be with you.

3. Garbage will "never" fall to the ground, and civilization will be reinterpreted in the "spring" day.

4. There are ways to buy electrical appliances, and the energy-saving signs are really good.

5. Smile is our language and politeness is our belief.

6. Civilized construction, living in harmony and working together to build a warm home.

7. Hush! Please do not disturb the historical contemplation (for the museum).

The phenomenon of false illiteracy not only exists in comics, but is also rare in reality. On the lawn: Don't litter, but there is still garbage on the ground; on the school gate: Don't park randomly, but cars are still all over the street; on the entrance to the scenic spot: Don't litter, but there are still writings on the trees; on the elevator The sign inside says: No Smoking, but it is often filled with the smell of smoke.