Doing one thing often has advantages and disadvantages. There are a few things that are beneficial but not disadvantageous. "Huainanzi Human Training" cloud: "Everyone knows benefits and sickness, but the sage knows benefits and benefits. It s also sick. It seems that the ancients have noticed the dialectical relationship of pros and cons. What does the following list mean? ['Things in real life are made up of pros and cons.', 'Be good at analysis and strive for more benefits than disadvantages.', 'Pros and cons are not absolute and can be transformed.', 'We should strive for good and good.']