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Jyutping jan4 ngoi6 jau5 jan4 , tin1 ngoi6 jau5 tin1
Pinyin rén wài yǒu rén , tiān wài yǒu tiān

Definitions (Wiktionary)
  1. proverb
    No matter how good you think you are, there is always someone out there that is better.

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Jyutping jan4 ngoi6 jau5 jan4 tin1 ngoi6 jau5 tin1
Pinyin rén wài yǒu rén , tiān wài yǒu tiān

Definitions (粵典–words.hk)
  1. 語句
    意思​指仲會​有​強過​自己​嘅​人​;​用​嚟​勸​人要​虛心
    There are always people who are better than you.
  2. 近義詞
    一山還有一山高、強中自有強中手

人外有人,天外有天 [---------]

Jyutping
Pinyin rén wài yǒu rén , tiān wài yǒu tiān

Definitions (CC-CEDICT)
  1. in the wider world there are people more talented than oneself (idiom)