121. Do what you ought， and come what can. 但知行好事，莫要问前程。

　　122. Doing is better than saying. 空言无补。

　　123. Doing nothing is doing ill. 游手好闲就是学坏。

　　124. Don‘t bite off more than you can chew. 贪多嚼不烂。

　　125. Don‘t change horses in the middle of a stream. 病重不宜换郎中。