xīn​jìng​zì​rán​liáng

a calm heart keeps you cool

  1. calm
    to be calm and tranquil; to have a mind at peace
  2. inevitably
    Used to indicate that a result follows naturally from a situation; often translated as "it follows that" or "will naturally happen"
  3. liáng adjective
    cool
    cool; chilly; a cool place or breeze; lower in temperature than what is warm but not as cold as lěng; to feel cold; (of a person or thing) cold or used for cooling off