Eternity " Beethoven once said: My art should benefit mankind. How happy I should be to be close to this! I'm afraid Beethoven didn't just want to get a good reputation. In fact, it is this kind of happiness that forgets me that is a high-level happiness. The life of these people is full of sweetness and joy, because their hearts are pure and noble. The sword body is happy for its own impetuousness, and the hilt is satisfied with its own existence for others, and it is also a kind of happiness to pay.

You may say, I am an ordinary person, not so "great". But do you have any brothers or sisters? You can tell them stories at any time! If you are still bored, if you meet a teacher on the road, it is not difficult to say hello to the teacher and smile. You pay little, but you sow the seeds of happiness in others' hearts. Aren't you happy? What you pay will be rewarded. As long as everyone gives a love, the world will become a warm place ... Are you ready? Put on your happiness backpack and sow happiness with me!

Comment: This paper discusses that different people have different happiness, such as mothers, artists and doctors. The poor and the rich also have different happiness. This paper focuses on the happiness of a kind of people, Du Fu and Beethoven, who are happy for the happiness of most people. Then we can start with the little things in our daily life and let others do the same.