常言道：言语是银，沉默是金。

As the saying goes: Speech is silver, silence is gold.

Source: Tatoeba

Sentence Composition

1 常言道 chángyándào as the saying goes
=2 言语 yányǔ
  1. words
  2. speech
  3. (spoken) language
=2 言语 yányu
  1. to speak
  2. to tell
=3 是 shì
  1. to be (followed by substantives only)
  2. correct; right; true
  3. (respectful acknowledgement of a command) very well
  4. (adverb for emphatic assertion)
=3 是 shì variant of 是 shì
4 银 yín
  1. silver
  2. silver-colored
  3. relating to money or currency
5 沉默是金 chénmòshìjīn silence is golden (idiom)