小心谨慎 xiǎo xīn jǐn shèn

DEFINITIONS

  1. cautious and timid (idiom); prudent
  2. careful

CHARACTERS

小 xiǎo small, tiny, insignificant
心 xīn heart; mind, intelligence; soul
谨 jǐn prudent, cautious; attentive
慎 shèn act with care, be cautious