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Main thinking = buying and selling logic, following the main capital movements to control positions.Value investment = an undervalued company that finds and holds sustainable profitability for a long time.

Value investment = an undervalued company that finds and holds sustainable profitability for a long time.Fool wisdom = value investment+main thinking!Fool wisdom = value investment+main thinking!

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.