1, discourse implication
Use this passage to explain: everything you do depends on the object, the person and the situation. It is futile for later generations to use the metaphor of "casting pearls before swine" to tell unreasonable laity profound truth.
2. Artistic features
"Frog at the bottom of a well" and "Playing the lute to a cow" both have ironic tone, so they must be quoted differently. For some stubborn people, reasoning with them is sometimes "casting pearls before swine" and wasting energy. But for people at all levels, this word should not be misused.
Extended data:
The allusion of frog in the well
A frog lives in an abandoned well. One day, the frog met a chinemys reevesii from the sea by the well. The frog boasted to the tortoise, "Look, how happy I am to live here! Sometimes when I am happy, I will jump by the well for a while; Tired, I went back to the well and slept by the brick hole for a while. Or just show your head and mouth and quietly soak your whole body in water: or walk in the soft mud, which is also very comfortable.
Look at those shrimps and tadpoles. No one can compare with me. Besides, I am the owner of this well, and I am free in this well. Why not visit it often? "The tortoise listened to the frog and wanted to go in and have a look. But its left foot has not been fully inserted, and its right foot has tripped.
He quickly took two steps back and told the frog about the sea. "Have you ever seen the sea?" ? The vastness of the sea stops at a thousand miles; The ocean is over 1000 feet deep. There were nine floods in ancient ten years, and the water in the sea didn't rise much;
After eight years and seven years of drought, the water in the sea was not so shallow. It can be seen that the sea is not affected by drought and flood. Living in such a sea is really happy! The frog in the well listened to the tortoise and stayed there in surprise. There is nothing more to say.