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Warren Buffett's greatest investment advice:

"If you invest in stocks, you must be mentally prepared to watch them fall 50% or even 80% and remain calm."

1. Be brave enough to buy when others panic.

2. Only heavily invest in 5-10 companies you truly believe in, don't spread across 50.

3. Don't obsess over daily price movements.

4. Study logic and fundamentals, don't trade based on K-line charts.

5. Add to positions during big drops, don't chase rallies. 6. Never sell based on emotion.

7. Pay less attention to financial media noise, read more financial reports. 8. Hold good stocks for years or a decade, not weeks.

9. Focus on catalytic events, don't blindly follow K-lines. 10. Treat volatility as an opportunity.

11. Don't check your account every hour.

12. Invest with a 10-20 year perspective.

The market rewards patience and punishes impulsiveness.