45. an idle youth, a needy age. 少壮不努力，老大徒伤悲。

　　 45. An Idle Youth, a Needy Age:少壮不努力，老大徒伤悲

　　As youths become idle, older generations are left with a heavy heart. The saying 少壮不努力，老大徒伤悲 is as true today as it was yesterday. In today's world, it is more important than ever to grab hold of opportunities and make the most of them. The youth of today must understand that their future is waiting for them, and it is up to them to make it happen.

　　The world is constantly changing, and what was true yesterday may not be true tomorrow. This means that young people must be prepared to take action and make their own mark on the world. By staying idle and not putting in the effort to develop their skills and abilities, they are missing out on the chance to make a difference.

　　It is important for young people to understand that the world is not just waiting for them; it is also depending on them. The future belongs to those who are willing to work hard and make it happen. This means taking responsibility for their own lives and not blaming others for their problems.

　　In conclusion, the youth of today must understand that the time is now, and it is up to them to make a difference. By staying idle and not putting in the effort to develop their skills and abilities, they are missing out on the chance to make a mark on the world. The future belongs to those who are willing to work hard and make it happen, and it is up to young people to take advantage of the opportunities that are available to them.