楊天一言：見二鼠出，其一為蛇所吞；其一瞪目如椒，似甚恨怒，然遙望不敢前。蛇果腹，蜿蜒入穴；方將過半，鼠奔來，力嚼其尾。蛇怒，退身出。鼠故便捷，歘然遁去。蛇追不及而返。及入穴，鼠又來，嚼如前狀。蛇入則來，蛇出則往，如是者久。蛇出，吐死鼠于地上。鼠來嗅之，啾啾如悼息，銜之而去。友人張歷友為作《義鼠行》。
楊天一說，他看見兩隻老鼠出來，其中一隻被蛇吞了。另一隻瞪著花椒粒似的眼睛，好像十分憤恨，卻只敢遠遠看著，不敢上前。蛇吃飽了，扭動著身子往洞裡鑽，身子將要進去一半時，那隻老鼠奔過來，用力咬它的尾巴。蛇發怒了，倒退著鑽出洞來。老鼠本來就靈活敏捷，一下子逃走了。蛇追不上，只好回來。等蛇進洞，老鼠又來，像剛才那樣咬它。蛇進去，老鼠就來；蛇出來，老鼠就走，這樣折騰了很久。蛇終於鑽出來，把死老鼠吐在地上。那隻老鼠上前嗅了嗅，吱吱叫著，好像在哀悼嘆息，隨後把死老鼠銜走了。我的朋友張歷友為這件事寫了一首《義鼠行》。
杨天一言：见二鼠出，其一为蛇所吞；其一瞪目如椒，似甚恨怒，然遥望不敢前。蛇果腹，蜿蜒入穴；方将过半，鼠奔来，力嚼其尾。蛇怒，退身出。鼠故便捷，歘然遁去。蛇追不及而返。及入穴，鼠又来，嚼如前状。蛇入则来，蛇出则往，如是者久。蛇出，吐死鼠于地上。鼠来嗅之，啾啾如悼息，衔之而去。友人张历友为作《义鼠行》。
杨天一说，他看见两只老鼠出来，其中一只被蛇吞了。另一只瞪着花椒粒似的眼睛，好像十分愤恨，却只敢远远看着，不敢上前。蛇吃饱了，扭动着身子往洞里钻，身子将要进去一半时，那只老鼠奔过来，用力咬它的尾巴。蛇发怒了，倒退着钻出洞来。老鼠本来就灵活敏捷，一下子逃走了。蛇追不上，只好回来。等蛇进洞，老鼠又来，像刚才那样咬它。蛇进去，老鼠就来；蛇出来，老鼠就走，这样折腾了很久。蛇终于钻出来，把死老鼠吐在地上。那只老鼠上前嗅了嗅，吱吱叫着，好像在哀悼叹息，随后把死老鼠衔走了。我的朋友张历友为这件事写了一首《义鼠行》。
Yang Tianyi told this. He once saw two rats come out, and one of them was swallowed by a snake. The other glared with eyes like peppercorns. It seemed full of hatred and rage, but it only watched from a distance and dared not come near. Its belly full, the snake wound its way into its hole. When it was halfway in, the rat ran up and bit its tail hard. The snake, enraged, backed out. The rat was nimble, and in a flash it was gone. The snake could not catch it and turned back. As soon as it went into the hole, the rat came again and bit it as before. When the snake went in, the rat came; when the snake came out, the rat ran off. This went on a long time. At last the snake came out and spat the dead rat onto the ground. The rat came up and sniffed it, squeaking as if in mourning, then took it in its mouth and carried it away. My friend Zhang Liyou wrote a poem about it, “The Ballad of the Righteous Rat.”