One of the laws of the world: Conservation of all things. Yin and Yang, the five elements, the south and north of heaven and earth, the five organs and six viscera, spring, summer, autumn, and winter. In physics, energy conservation states that energy cannot be created from nothing, nor can it disappear without reason; in chemistry, the conservation of mass means that the total mass of substances remains unchanged before and after a chemical reaction; in biological systems, the food chain is the foundation of balance and stability; in economics, equilibrium points are followed in an effort to achieve Pareto optimization. Trading is no exception; for every gain, there must be a hidden factor of loss. What do I want to say? Make a choice once a day, one trade, and do not be like a night-time trader making seven trades in one night. According to data analysis, those who take leveraged medication will not live more than three months.