Dennis Gartman's Simple Rules Of Trading
1. Never, Ever, Ever, Under Any Circumstance, Add to a Losing Position... not ever, not never! Adding to losing positions is trading's carcinogen; it is trading's driving while intoxicated. It will lead to ruin. Count on it!
2. Trade Like a Wizened Mercenary Soldier: We must fight on the winning side, not on the side we may believe to be correct economically.
3. Mental Capital Trumps Real Capital: Capital comes in two types, mental and real, and the former is far more valuable than the latter. Holding losing positions costs measurable real capital, but it costs immeasurable mental capital.