The sentences of "Don't waste your time, don't do nothing" are:

1. The lights are on at three o'clock and the chicken is on at five o'clock, which is when men are studying. Black-haired people don't know how to study diligently early, and white-haired people regret studying late. --Yan Zhenqing;

2. If a young man does not work hard, the old man will be sad. -- "Long Song Xing";

3. "The most precious thing for people is life. Everyone has only one life. Therefore, a person's life should be spent like this: When he looks back on the past years When he is about to pass away, he will not regret for wasting his time, nor will he be ashamed for accomplishing nothing; in this way, when he is about to pass away, he can say frankly: I have dedicated my whole life and all my energy to the most magnificent thing in the world. Cause - Struggle for the Liberation of Humanity" - "How Steel Was Tempered".

The lights are on at three o'clock and the chicken is on at five o'clock, which is when men are studying. Black-haired people don't know how to study diligently early, and white-haired people regret studying late. Analysis: From midnight every day to when the rooster crows, it is the best time for boys to study. When I was young, I only knew how to play and didn't know how to study hard. When I get older, I regret why I didn't know how to study hard when I was young;

If a young man doesn't work hard, he will be sad. Analysis: If you don’t work hard when you are young and strong, there will be no point in being sad when you are old.

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