One of them is that happiness depends not on external factors, but on internal state. Yes, happiness is a person's personal experience and does not depend on the judgment of external factors. There are many kinds of happiness. Different people have different feelings about happiness. For example, people who eat roadside stalls often pursue high-end quality. They don't think it will be a kind of happiness to sit by the roadside and enjoy fireworks, but for some people, this small satisfaction will also be a kind of happiness, so happiness does not depend on the quality of material.
As we know, it is a happy thing to give someone a fragrant rose and help others. While helping others, we have also gained a self-happiness, which is undoubtedly the best of both worlds. Everyone is an independent individual, and he will have his own personality. People, even higher animals, will also have their own thoughts, but this does not deny that human nature is indeed full of many weaknesses, but it is precisely because of these weaknesses that we expect ourselves to become better and better and learn how to get along with others.
People are gregarious animals, so we can't live alone. We always get along with people and are inextricably linked with society and people. A large part of our life depends on the state of getting along with you. We can only live in harmony with the people around us and expand interpersonal relationships. As the saying goes, no one is perfect, and everyone has shortcomings. In this book, he will teach you some interpersonal relationships that you can't solve, so that you can.