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Fear comes from the unknown, and greed comes from want.Value investment = an undervalued company that finds and holds sustainable profitability for a long time.

Investment is the process of recognizing "economy, policy, value, main force, cycle, mood, position and signal".Main thinking = buying and selling logic, following the main capital movements to control positions.

Fool's main control panel = value investment+main thinking!Fear comes from the unknown, and greed comes from want.