When people lose in emotion, they might get mad then vent at others directly, as if a mental explosion. Those blame on innocent, yet they make the situation worse due to their negative emotions are the origins of the problems usually. Thus I freeze the emotion, avoiding the negative growth. Someone said: "Emotion is the innate weakness of human."; nevertheless, "People knowledgeable slow to anger." Everyone supposed to learn about self-control, to stay calm and also deal with a problem in a cool-headed mood. As a result, "Happiness doesn't depend on any external conditions, it is governed by our mental attitude." Anyone could choose their own lives, to be happy or to be upset, there is nothing to do with any external conditions or other else. This is a kind of encouragement and also a self-alert.