(2) To realize this task, we need to give full play to our subjective initiative and create two conditions: one is to possess a large number of reliable perceptual materials, and "bees collect materials from flowers" is a metaphor for this; The second is to use scientific thinking methods to process perceptual materials. "Bees use their own abilities to change and digest" is a metaphor for this. Only with the above two conditions can we understand the essence of things. Therefore, we should learn from bees in the process of understanding the essence of things.

(3) The experimenters like ants only pay attention to the collection of perceptual materials, but ignore the processing and production of perceptual materials; Inferiors like spiders ignore the collection of perceptual materials and regard rational knowledge as subjective and spontaneous. Therefore, in the process of understanding things, we can't learn from ants and spiders.

The key to solving this problem is to turn this image metaphor into "How to make our knowledge rise from perceptual knowledge to rational knowledge".