In the stock market some principles are indisputable. Let's review 10 general principles to help investors best approach the market from a long-term view. Every point is a fundamental concept every investor should know.

1. Sell the Losers, Let the Winners Ride

2. Don't Chase a Hot Tip

3. Don't Sweat the Small Stuff

4. Don't Overemphasize the P/E Ratio

5. Resist the Lure of Penny Stocks

6. Pick a Strategy and Stick With It

7. Focus on the Future

8. Adopt a Long-Term Perspective

9. Be Open-Minded

10. Be Concerned About Taxes, but Don't Worry

Source : Investopedia