silence is golden

saying2

1. •
   Peace and quiet have great value.

   • "[I] adore good music, I hate bad, and I despise mediocre. Silence is golden, indeed, compared with poor music." — 1877
2. •
   Often the best choice is to say nothing.

   • But I have spoken long enough. There are times when silence is golden, and one of those times is at hand. — 1897