勿

qǐng wù jìn rù

请勿进入。

No entry.

qǐng wù xī yān

请勿吸烟。

No Smoking.

qǐng wù dǎ rǎo

请勿打扰！

Room in use!

wù jìn guō lú

勿近锅炉

stow away from the boiler

jǐ suǒ bù yù wù shī yú rén

己所不欲，勿施于人。

Never force others to do what they don't want to do.

wù jìn

勿近！

Stand off!