Spiders are characterized by self-interest and selfishness Silkworms are characterized by self-interest and self-sacrifice. Spiders are not professional spinners, but their silk is used to catch mosquitoes. Spinning is a means of making a living, not housekeeping, but self-defeating.

Silkworm is a professional spinner. Its silk is used for human spinning and making clothes, and its silk is used for cocooning, not making a living. Belongs to domestic creatures, with human intervention. Modern science shows that both of them are tough and can be used in different fields.