Old people often think about the past, and young people often think about the future.

A man is interested in world affairs, but he will never stop making progress.

————Liang Qichao

As a young boy who was a classmate, he was in his prime and vigorous as a scholar. He scolded Fang Qiu, pointed out the country, and inspired writing. In those days, tens of thousands of households were buried in the dust. Do you ever remember that he hit the water in the middle of the stream? , the waves contain the flying boat. ——Mao Zedong's "Qinyuanchun—Changsha"

The young man does not know the feeling of sorrow and falls in love with the upper floors. Falling in love with the upper floors, I force myself to express my sorrow in order to compose new words.

Now that I know all the sadness, I can’t stop talking. I wanted to give it up, but I said it was a cool autumn.

----Chou Nuer·Shubo Mountain Road Zhongbi·Xin Qiji

It is easy for a young man to learn from an old man, and an inch of time cannot be taken lightly.

Not aware of it The spring grass in the pond is dreaming, and the sycamore trees in front of the steps are already singing in autumn.