Grasp the advantage: find a trading strategy with positive expectations, because in the long run, it can create positive returns. Manage risk: control risk and hold your ground, otherwise you may not be able to wait for the day to create results. Perseverance: Only by unswervingly implementing your strategy can you really achieve systematic results. Simplicity: In the long run, a simple system is more important than a complex system. The original turtle unveiled the legendary trading system for the first time in 1983. Twenty-four years later, it asked traders for the best reference books.