I should not follow advisory services. They are not infallible, either in Canada or on Wall Street. 2.I should be cautious with brokers’ advice. They can be wrong. 3.I should ignore Wall Street sayings, no matter how ancient and revered. 4.I should not trade “over the counter"—only in listed stocks where there is always a buyer when I want to sell. 5.I should not listen to rumors, no matter how well founded they may appear. 6.The fundamental approach worked better for me than gambling. I should study it.
