What is Murphy's Law? How to apply?

Murphy's Law (English), also translated as Murphy's Law, Murphy's Law, Murphy's Theorem and Murphy's Theorem, is a common slang in western countries and has been widely used by China people in recent years. Murphy's law originated from an American captain named Murphy. He thought that one of his colleagues was unlucky and casually said a joke: "If something is likely to screw up, let him do it and things will screw up." The original words of Murphy's law are as follows: if there are two or more ways to do something, and one of them will lead to disaster, then someone will do it. If there are two choices, one of which will lead to disaster, someone will definitely make this choice. According to Murphy's law: ★ Murphy's law 1. Don't try to teach pigs to sing, it will not only have no result, but also make pigs unhappy! Second, don't quarrel with fools, or others won't know who is a fool! Third, don't feel important, because without you, the sun will still rise in the east tomorrow! ● Starting from Murphy's Law; Anything that can go wrong is bound to go wrong. Murphy philosophy; Smile, tomorrow is not necessarily better than today. Murphy criterion; The better things are, the more useless they are. A good beginning does not necessarily lead to a good result. A bad beginning often leads to worse results. If you help a friend who needs money badly, he will surely remember you. ) ● A leader is a fool, just like a person at the top of a mountain, who will look down on everyone. Everyone will look down on him. There is power between wisdom and stupidity-let him do it. Incompetence-teach him to do it. What can't be done-control him. Love the person you fall in love with, always thinking that you fall in love with him because; He reminds you of your old lover. The love letter you finally sent; How long it takes to contact each other, how long it will take you to go back on your word. Go out early and come back late. You arrived early, but the meeting was cancelled. You arrive on time, but you have to wait. Late is late. ● Quality assurance: A product that is guaranteed to be trouble-free for 60 days and bad for 6 1 day ● Things that are useless for a long time can be thrown away. Once things are thrown away, they are often used. ● Looking for Lost Property When you lose something, the first place you look for is often the last place you may find. You will often find something that is not what you are looking for. ● Wonderful When you went out to buy popcorn, there happened to be a wonderful shot on the screen. ● Waiting in the other row is always faster. You moved to another row, the row where you were standing, and you started to speed up. The longer you stand, the more likely you are to stand in the wrong row. ● The farther the crash site is, the more casualties there will be, otherwise the story will not be written. ● Traveling together When you travel together, the less you want to be seen, the more you will meet acquaintances. How long is relativity one minute? It depends on whether you are squatting in the toilet or waiting outside. ● Dial the wrong phone number. When you dial the wrong number, you will never get through. A horrible ending is better than endless horror.