Don’t wait and see, your young head will turn gray, and you will be filled with sorrow.

There are roads on the mountain of books and hard work as a path, and there are no cliffs in the sea of ??suffering as a boat.

I advise you not to cherish your gold-threaded clothes; I advise you to cherish your youth.

The road of life is very long, and there are only a few critical steps, especially when you are young.

Black-haired people don’t know how to study early, and white-headed people regret studying late.

The edge of a sword comes from sharpening, and the fragrance of plum blossoms comes from the bitter cold.

Winter is coming, can spring be far behind?

The most precious thing for people is life, and life belongs to people only once.

A person's life should be spent like this: when he looks back on the past, he will not regret for wasting his years, nor will he be ashamed of being inactive; in this way, when he is dying, he can say: " My whole life and all my energy have been dedicated to the most magnificent cause in the world - the struggle for the liberation of mankind!"