In front of them, there is half a piece of bread each. A man looked at it and thought, "I still have half a loaf of bread." The other man looked at it and thought, "I only have half a loaf of bread." Why do two people have completely different attitudes towards the same piece of bread and a half? This is mainly because the mentality is at work. Optimists get satisfaction from half a loaf of bread and see hope; A pessimist gets discontent from half a loaf of bread and sees despair. This just confirms the truth that "the environment is made by the heart". Different mentality creates different situations. If you look at things in the world with an optimistic attitude, even setbacks or even sufferings, you can find reasons for optimism, and then resolve setbacks and sufferings. Socrates, a great philosopher, lives on the fifth floor, so it is inconvenient to move things. But he said that the fifth floor is good, which can avoid the damp on the ground floor. Later, his residence moved from the fifth floor to the first floor, and the ground was often wet, but he said that the first floor was good, which could save the hard work of moving things. Therefore, no matter how unfavorable Socrates is, he will always feel satisfied and happy. Julius bought a lottery ticket of 2 marks, but won 500,000 marks. He used the 500,000 marks to buy a luxury villa and added a lot of high-end furniture. Unexpectedly, all this was reduced to ashes in one of his cigarette butts. Friends came to comfort him, but he said, "I just dropped two points." It was his optimistic attitude that resolved the great pain of losing 500,000 marks. In this way, Julius was destined to be with happiness all his life. If you look at things in the world with a pessimistic attitude, even a small setback and pain will make you feel that it is a catastrophe, and you will bear heavy thoughts. In ancient China, there was a country called Qi State. People in this country are always worried that it will fall one day. They are on tenterhooks all day. So later generations spread a saying: "Qi has nothing to worry about." Later, the idiom "worrying about the sky" came into being. Why are Qi people worried about the sky falling? It is because they look at the world with a negative and pessimistic attitude that the world will become worse and worse in their minds. According to a survey, most patients with mental illness imagine a small setback and a little pain as a huge disaster because of self-annoyance, so they feel psychologically unbearable. "Circumstances are created by the heart", and everything is human efforts. Let's treat life with a positive and optimistic attitude! In this way, in the vast Yuan Ye of life, you will gain happiness and happiness.