I'll tell you my true feelings. I'll make up my mind to study hard. I'll regret studying too late when I'm old.
This sentence came from the Qing Dynasty writer Nalan Xingde's "Huanxi Sand·A Song of New Words and a Cup of Wine". The meaning was: If you tell the other party your true feelings, you should take advantage of your youth to strive hard; if you don't know how to study hard every day, you will regret it when you are old. This sentence expressed that in life, we should cherish time, seize opportunities, and continue to learn and grow. Youth is the golden age of learning. We should cherish this time and work hard to lay a solid foundation for our future. When we are old, if we don't study hard and struggle as we did when we were young, we will regret not missing this time and feel empty and regretful. Therefore, this sentence tells us to cherish time, seize opportunities, and continue to learn and grow in order to achieve greater achievements in life.