Throughout history, gold has been a sign of purity, beauty and power. Calling something " golden" means it has great quality and value.

纵观历史，黄金一直被视为纯洁、美丽和权力的象征。称某物像黄金是说它具有很高的质量和价值。

The expression " silence is golden" means that it is good to be quiet, or it is good to be in a place without noise.

“沉默是金” 这句话的意思是安静是好的，或者是在一个没有噪音的地方是好的。