Take Responsibility: Many folks believe "the game is fixed." To them, I say: get over it. Stop whining and take the proper
Constantly Improve: Investing is
Change Is Constant: Heraclitus was a Greek philosopher best known for his "Doctrine of Flux": "The only constant is change."
That doctrine is especially true in the markets. Therefore, as you constantly upgrade your skills, you must remain supple enough to adapt to an ever-changing field of play.
Human nature -- especially in herds -- is unchanging. But these behaviors must be contemplated within their larger context. Add a new element -- PCs, lower trading costs, the Internet, vast amounts of cheap data, even CNBC -- and you introduce a new factor that impacts all the players on the field.
As conditions change, you must decipher how they impact your strategy, your emotions and your trading -- and adjust accordingly.