2, lost in the east corner, harvesting mulberries;

3. Born in sorrow, died in happiness;

4, eat a glimpse, gain wisdom;

5. Losing money is a blessing. Zheng Banqiao, known as one of the "Eight Eccentrics of Yangzhou" by the world, left two four-word famous sayings, one is "it's hard to be confused" and the other is "it's a blessing to suffer". For self-cultivation, the latter sentence is undoubtedly more worthy of being regarded as a creed.