未雨 (鱼) 绸缪
Marine consumption is vital for human survival.
This picture is a metaphor for weighing the benefits of marine consumption.
The top part of the knife that is blunt represents how time and energy are chipped away as these fish mongers dedicate their life into their work.
Survival of the Fittest
Over the years, these fish mongers have acquired the skill of productive efficiency and have applied this in their field of work. This has benefited the efficiency of the system, which reflects the importance of efficiency in society.