有些真心话往往都藏在玩笑只是说者有心听者无心罢
[yŏu xiē zhēn xīn huà wăng wăng dōu zàng zài wán xiào zhĭ shì shuō zhĕ yŏu xīn tīng zhĕ wú xīn bà]
'Some honest truths hide within jokes, where only the speaker has intention, but the listener does not take seriously.' It conveys hidden sincerity masked by jests, hinting that not all playful words lack depth or importance.