Advice, Korean Proverb
빈 수레가 요란하다 Transliteration: Bin surega yoranhada. Translation: An empty cart rattles loudly. English equivalent: It is not the hen that cackles the most that lay the most eggs. Meaning: It is not he who advertises for himself the most that can achieve the greatest results. Choe, Torchia (2007). Looking for a Mr. Kim in Seoul: A Guide to Korean Expressions. Infini Press. p. 232.