Bayi Bridge, which spans the north and south banks of the Ganjiang River, is majestic and imposing. There are two mighty stone lion sculptures at the northern end of the bridge, which mean "emancipating the mind and seeking truth from facts" (lions, thinking and things are similar in homophonic). Interestingly, at the southern end of the bridge, there are sculptures of two cats, one black and one white. The black cat's paw is still holding a mouse, and the mouse is holding a copper coin. The white cat jumps and ups and downs, ready to pounce on the prey in the hands of the black cat. Here is a short story that I don't know whether it is true or not: a leader of the Central Committee visited Nanchang, and the Bayi Bridge was not completely completed. The great leader first saw the stone lion at the northern end of the bridge and was very satisfied. He asked the local officials, "Is there such a stone lion at the other end of the bridge?" Local officials said in Mandarin with a strong dialect: "Not yet." The great leader heard it as a "black cat". Immediately, I even thought of the famous saying of the chief designer, "No matter whether it is a white cat or a black cat, as long as it catches a mouse, it is a good cat." He said to the local officials, "Why not put a white cat and a black cat over there?" Local officials repeatedly said yes, so there was a bridgehead with two cats, one black and one white.