Square dance stone scissors
This is the rules of the game, engraved with each other, so there is nothing the most powerful. When one thing meets another, it may not be strong enough. Everything has its vanquisher in life. It is circularly constrained, so this principle can also be used in life. There is nothing powerful and uncontrollable, just no factors to restrain it have been found. Stones, scissors and cloth are all too familiar to us. We can play this game when we are young, so we will guess each other when we meet, that is, know ourselves and know ourselves. Some things may change quickly, so we should be prepared for some things in life.