excessive talk is sure to bring huge losses; he that talks much errs much ? 處世戒多言，～。(朱柏廬《治家格言》)Excessive talk is sure to bring huge losses; |Be on your guard against it.
言多必失yán duō bì shī
話說多了，一定有說錯(cuò)的地方。much talk leads to faults, The least said, the soonest mended.