Gold is not pure, and no one is perfect: Pure gold:

Pure gold, pure gold. There is no such thing as pure gold

. Metaphor: Nothing is perfect. Also

a metaphor cannot require a person to have no shortcomings

mistakes.

Who can be perfect except Yao and Shun: Yao and Shun:

The two legendary emperors of ancient times. Ordinary people

are not sages like Yao and Shun. Who can be perfect

perfectly. It is impossible for a person to be without shortcomings.

Chi Yu Cun Flaw: Large pieces of beautiful jade but small flaws

Sickness. It is a metaphor for good talents but small shortcomings.

White jade has slight flaws: there are some small spots on the pure white jade

. It is a good metaphor for people or things that have some shortcomings.