who invented money system, Knowledge graph

Ding Yuanying said the essence of the stock market! What is the next step?Ding Yuanying said the essence of the stock market! What is the next step?

Fool wisdom = value investment+main thinking!Ding Yuanying said the essence of the stock market! What is the next step?Investment is the process of recognizing "economy, policy, value, main force, cycle, mood, position and trust". Fear comes from the unknown, and greed comes from want.

Main thinking = buying and selling logic, following the main capital movements to control positions.