Why are those rich and noble families in ancient China prone to decay? Because the housekeeper around him always only said good things, the granary was full, the harvest was good, and when the master opened the door and saw that the land was barren. In this era of information explosion, the most expensive thing is not information, but the truth. If you brush up on a good situation every day, then you must be vigilant, the real threat is often hidden next to those filtered out harsh sounds, closing your eyes does not mean it's dark, but you can't see where the pit is.