Everything in time will never come back. Your yesterday has passed, it will become yesterday forever, and you can never go back to yesterday. -"Race against Time" Lin Qingxuan (Taiwan Province)

Cherish the famous aphorism of time

There is a long time between today and tomorrow; Learn to do things quickly while you are still energetic. -Goethe

If we want to live, we should build a clock full of feelings, thoughts and actions for ourselves, and use it to replace this boring, monotonous, melancholy time that kills the soul, with reproach and cold ticking. -Gorky

The way to finish the work is to cherish every minute. -Darwin

To arrange time reasonably is to save time. -Bacon

We should observe carefully in order to understand; We should try to understand, in order to act. -Roman Roland