meanwhile, coincident or not, that line is a translation of a Chinese proverb.
Directly, it means if the lake/pond where the fishes live is too clear, everyone would have caught all the fishes and there will be no fish left. If the water is murky/muddy, no one would know how many fishes are still available.
Implicitly, (pardon my poor interpertation, I am a bit hungover) it can mean if a person tell everyone everything about himself, no one would be interested in knowing him because there's nothing left to know. In a sense, it's like playing "Hard to Get."
Directly, it means if the lake/pond where the fishes live is too clear, everyone would have caught all the fishes and there will be no fish left. If the water is murky/muddy, no one would know how many fishes are still available.
Implicitly, (pardon my poor interpertation, I am a bit hungover) it can mean if a person tell everyone everything about himself, no one would be interested in knowing him because there's nothing left to know. In a sense, it's like playing "Hard to Get."