It means: If you pass by Guatian's house, even if your shoes have dropped, don't bend down to lift them, because this is to avoid suspicion, or someone will suspect that you are picking melons, so you say "Gua Tian doesn't take shoes". Similarly, when passing under the plum tree, don't raise your hand to correct even if your hat is crooked. This is also to avoid suspicion. Don't be misunderstood that you stole plums, so say "Li Xia is not the official crown".
These words are mostly used to warn people to be cautious and avoid suspicion.
White jade is slightly flawed:
Flaw: A spot on the jade. There are small spots on the white jade. Metaphorically speaking, a good person or thing still has small shortcomings and fly in the ointment. Xiao Tong's Preface to Tao Yuanming's Collection in the Southern Dynasties: "I love his writings ... people with slight defects in white jade are only idle." "The choice of group telephone. A combination of music. Yu Hua's punishment ear: "I can be ashamed of the flaws in white jade." Once I get the beauty, I will stop and try to see if the fox can be the first hill. " Lu Xun's Gai Hua Ji. Sacrifice to Mo: "But, my comrade, you have sacrificed everything, and you can really admire it. It's a pity that you have a pair of trousers left, and you may have to leave some flaws in history in the future. " Also known as "white jade is slightly flawed." Jing's Zhenguan Politician. Fairness ":"A villain is not without small goodness, and a gentleman is not without small faults. The gentleman is small and does not hide the slight defects of white jade; The villain is better, this is one of the lead knives. "
There are tiny flaws on the white jade. Metaphor is a fly in the ointment.