The gains and losses of one moment and one thing always seem to haunt us, and always be the source of troubles in life. If you can really put them aside, the troubles will be truly detached. In fact, the proposition that is really worth worrying about is: in what form should the value of life be? What kind of transformation is done, there are a thousand people with a thousand answers to this eternal mystery, but no one of the world's most authoritative textbooks can provide the perfect answer. This passage mainly states:. ["Most people's troubles come from gains and losses in the moment.", 'No one has known for thousands of years the value of life.', "Textbooks don't give people answers about the meaning of life.", 'What people should really think about is how to transform the value of life instead of gains and losses.']