A foreign businessman visited a city in Henan and asked the receptionist, "Do you have an airport here?" "No" "Is there any place to visit?" "There is a reservoir, there is nothing to play." The face of foreign businessmen turned from sunny to cloudy.

Foreign businessmen went to the city near this city. There are different answers to the same question: "There is a large airport, and it takes two hours to walk along the Beijing-Shenzhen Expressway." "Yes, there is a tea cliff mountain 60 kilometers south, which is small and exquisite." The foreign businessman laughed at once.

② Change from single thinking to multidimensional thinking.

From being keen on "vertical ratio" or "horizontal ratio" to combining "vertical ratio" and "horizontal ratio"

③ From conservative thinking to creative thinking.

Professor Maier's experiment on mice is cruel, but enlightening. Dead door-black and blue; Valve-sweet cheese. Open and close the door, the poor mouse has to adapt to the new situation. It changes frequently, and the mouse refuses to jump. Some mice bit themselves and trembled all over, "having a mental breakdown".