First, nothing is as simple as it seems;

Second, everything will take longer than you expected;

Third, things that can go wrong will always go wrong;

If you are worried about something happening, it is more likely to happen.

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 definitely make this choice.

This sentence spread quickly. Murphy's Law, also known as Murphy's Law and Murphy's Theorem, is a common slang in the western world.

The main content of Murphy's law is: if things are likely to go bad, no matter how small the possibility is, it will always happen.