What is the consciousness that people don't waste their youth? Who said that?

This sentence was said by Tang Bohu. . . . It means that life is alive, life is short, and adolescence is over at once. . . . When I was young, I told my mm that I didn't know one or two, so I didn't cherish myself, and I had an affair when I was young. . . . This is similar to the meaning of a song (as seen by the girl opposite). . . . . I suggest you listen to the lyrics to understand. . .