Trading is like warfare, where both offense and defense are necessary. Defense is based on retreat, while offense is based on advance. When risk outweighs profit, a perfect retreat is far more significant than a partial victory. The highest level of trading is short positions. Only short positions can calm down, only meditation can observe battles, and only observation can serve as a referee, thus distinguishing between strong and weak trends. As long as one stands in line with the strong and weak teams, profit is just a passing act. Therefore, the first thing a trader needs to learn is to spend most of their time observing, rather than participating. They don't need to participate every time, they only want to turn the tide of trading once. There is no one in this world who lives easier than anyone else, but the strong. Even if they fall, they must smile, never cry out for pain when they fall, or turn on the light when they are afraid of the dark. The strong are not born, they have only experienced more setbacks.