1. It is better to study early if you have black hair, and regret studying later if you have gray hair.

2. Those who abandon time, time also abandons him. ——Shakespeare

3. Time is made up of minutes and seconds. Only those who are good at using sporadic time will achieve greater results. ——Hua Luogeng

4. Time has three steps: the future comes belatedly, the present flies like an arrow, and the past remains stationary forever.

5. Don’t miss the things of the whole day in the morning, and don’t miss the things of a lifetime when you were young.