Principle of brain thinking: the brain structure uses logical laws to understand and explain the information obtained. Brain thinking is the interaction between all kinds of information, and the brain provides a place for this interaction and a material basis for their interaction.

Memory principle: There are one billion nerve cells in the nervous system, which form complex memory connections through synaptic interaction.

The human cerebral cortex is the most developed organ of thinking, which dominates all activities of the body and regulates the balance between the body and the surrounding environment. Therefore, the cerebral cortex is the material basis of higher nervous activity. Abstract memory states can be divided into sensory memory, short-term memory and long-term memory.