Fish a needle in the sea.
More Chinese Proverbs:
Great people give it with reproaches.Chinese
You can be cautious about the future but not the past.
Chinese
What is whispered in your ear is often heard a hundred miles off.
Chinese
Think about your own faults during the first half of the night, and the faults of others during the second half.
Chinese
Swiftest horse cannot overtake the word once spoken.
Chinese
No melon-peddler cries: Bitter melons
Chinese