承诺在你口中请你记住轻重
[chéng nuò zài nĭ kŏu zhōng qĭng nĭ jì zhù qīng zhòng]
"Promise in Your Mouth, Please Remember Its Weight" conveys that words and promises are not mere trifles; they come with seriousness and should not be spoken easily. This reflects the Chinese belief of keeping one's promise at all costs.