Establish your own investment theory by research
Every investor or speculator wants success of which definition will vary depending on his or her expectation.
If you want success as an stock market investor which is the most difficult occupation in the world, it is absolutely necessary to study and learn the stock market through many channels including books, on/off line teaching or your own experiences at an early time.
Through the stage, you understand every action/reaction and the cause/results of stock market dynamics.
Without this early stage, you cannot advance to the final stage and establish your own theory because you cannot understand the voice of market.
At final stage you must research the stock market itself by yourself and establish your own investment theory including strategy, tactics, psychology, risk management and philosophy for investment or speculation or trading.
For the establishment of your own theory, it is helpful for you to not only learn the lessons from the world greatest investors but also learn how they studied and researched the market and how they learned lessons from the stock markets.