The principles of the world are universal. The Art of War by Sun Tzu states that the enemy is invincible, and we must first ensure our invincibility, and then wait and induce the enemy's mistakes. Buffett said that the most important thing is to not die, and then patiently wait for opportunities, waiting for the market to 'make mistakes'. Sun Tzu's Art of War states that there are five things and seven plans. First, conduct a SWOT analysis to ensure that your strength is crushed and your fundamentals surpass those of your opponents. Then, discuss strategies. Win first and then fight. Duan Yongping said that the most important thing in running a business is to stick to one's duties and produce good products, rather than those that everyone thinks are "good marketing"; Investing is also about sticking to one's duty, rather than pursuing quick wealth. When I read a book, the easiest thing I fear is reciting the wrong scripture and misinterpreting the meaning of the wise. The simplest way is to read what the most amazing people in various fields have said, cross verify, and then practice on my own. This is what engineering refers to as' redundant backup '. In order to prevent a bridge from collapsing, it is necessary to ensure that there is still redundant security in case of any problems with the main structure. A person's knowledge system, in order to ensure a decent level of absurdity, should also draw on the same ideas.