「嘢可以亂食，説話唔可以亂講」

(pos:語句)
<explanation>
yue:叫人唔好亂講嘢，要慎言
eng:used to warn someone to watch what they say; literally: you can eat without thinking, but you should not talk without thinking as well
<eg>
yue:嘢可以亂食，説話唔可以亂講。情侶分手好多時就係因為啲人口不擇言。 (je5 ho2 ji5 lyun6 sik6, syut3 waa6 m4 ho2 ji5 lyun6 gong2. cing4 leoi5 fan1 sau2 hou2 do1 si4 zau6 hai6 jan1 wai6 di1 jan4 hau2 bat1 zaak6 jin4.)
eng:you can eat without thinking, but you should not talk in the same way. Many lovers break up because of faux passes.