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As an investor, you should always keep improving. Here are my 50 laws to become a better investor, writes CQ, editor of Compounding Quality.

1. Common sense is not so common
2. Greed often overcomes common sense
3. Greed kills
4. Fear and greed are stronger than long-term resolve
5. There is no cure for being overleveraged
6. When you combine ignorance and leverage, you usually get some pretty scary results
7. Operate only in your area of competence
8. There is always more than one cockroach in the kitchen
9. Over long periods of time, equities will rise in value
10. Long investing generates wealth
11. Short selling can protect wealth
12. Be patient and learn how to sit on your hands
13. Try to get a little smarter every day and read as much as possible
14. Investors often think too little and calculate too much
15. "Security Analysis" by Benjamin Graham is the most important book ever. Read and reread it
16. History is a great teacher
17. History rhymes
18. What we have learned from history is that we haven't learned from history
19. Investment wisdom is always 20/20 when seen in the rear-view mirror
20. Avoid first-level thinking. Embrace second-level thinking
21. Think for yourself
22. In investing, that which is profitable is most often not exceedingly profitable at the end
23. Avoid herd behavior
24. The more often stupidity is repeated, the more it gets the appearance of wisdom
25. Always have more questions than answers
26. You must have accounting and finance knowledge, work hard, and be very competitive to be a successful investor
27. The stock market is full of individuals who know the price of everything and the value of nothing
28. Directional call buying, when consumed as a steady appetite, is a mug's game and often a path to the poorhouse
29. Never buy the stock of a company whose CEO loves expensive toys
30. Avoid "The Noise"
31. Reversion to the mean is a strong market influence
32. On markets and individual equities: "When you reach success station, get off."
33. Try to buy stocks at cheap valuation levels
34. Being right or wrong is less important than how much you make when you're right and how much you lose when you're wrong
35. Too much of a good thing can be wonderful
36. New paradigms are a rare occurrence
37. Price goes before the fall
38. Consider opposing investment views and cultivate curiosity
39. Maintain a healthy level of skepticism
40. In investing, nothing is certain
41. Always control your emotions
42. "Rate of change" is the most important statistic in investing
43. In evaluating the attractiveness of a stock, always consider upside reward versus downside risk
44. Always stick to your investing strategy
45. Know what you own
46. Immediately sell a stock on the announcement of an accounting irregularity
47. Always follow the cash (flow)
48. Replace the word EBITDA with earnings
49. Favor doing stock research over spending time on sites like r/wallstreetbets
50. Find a good mentor and pay attention to what they're doing

A few final words? Investing is simple, but not easy. The beautiful thing about the world we live in today? You can learn from the best investors in the world and copy their investment philosophy/ideas.

About the Author

Compounding Quality has a true passion for investing and helping other investors. He aims to invest in the best companies in the world, as it's far better to buy a wonderful company at a fair price than a fair company at a wonderful price. Compounding Quality used to work as a professional investor but left his job to help investors with his newsletter. The main reason for this? He was sick of the short-term mindset of Wall Street and wanted to genuinely do the right thing.

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