The king cuts the Tao, the wise cuts the communication, the brave cuts the plan, the mediocre cuts the diligence, and the fool cuts the savage! Smart life, self-knowledge first, what does stupidity mean? The word cutting here should mean "take" and "use". Wang uses Heaven to achieve kingliness with the natural development law of everything in the world, and the wise man achieves the wise man with the balance of interaction, communication and communication. Mediocre people need to supplement their own shortcomings with diligence; Fools only know how to use brute force; A wise life begins with knowing yourself.