Life is short and impermanent, just like a passer-by. The original poem laments that life is short, and life is alive, just like a passer-by, coming and going in a hurry, and there are not many days to stay. Now this sentence is often used to encourage people to seize the time and strive for progress.

It is almost as difficult for friends to meet each other as the stars in the morning and evening. (Tang Du Fu's "To Wei Ba Chu Shi")

"God" and "Shang" are all stars in the sky. These two stars are opposites, so one star rises and the other sinks, and there will never be a chance to meet. The author compares the stars to the world, which shows that when people are alive, they often have to bear the pain of parting from their old faces. Just like the stars in the sky and commercial stars, they always gather less and leave more, so it is rare to have a chance to meet each other.

There is no distinction between old and young in life. Why should we talk about a tune first?

(Don Du Fu's "Walking Home")

The intersection of people, why care about the old and the young; As long as they are in harmony with each other, why must they be in tune first? Regardless of the age difference, you can forget the turn of the year; If you don't seek great harmony, you will have to forget the water. As long as they are congenial to each other, no age, identity or industry difference will constitute an obstacle between friends.

Since the world can't satisfy our desire, I will loosen my hair and get on a fishing boat tomorrow.

(Tang Li Bai's "Shu Yun, Xuanzhou Xie Tiao Building Farewell School Book")

The meaning of these two poems is that since life is not satisfactory, it is better to have long hair tomorrow and go out to sea by boat! The poet's ambition is hard to be rewarded, and he is unhappy, so as to express his desire to get rid of his troubles and sufferings and exile himself to a new free and happy situation, and to express his feeling that he has no talent.

How many sad past in life, the mountains still remain cold.

(Don Liu Yuxi's Old Story of Xipao Taishan)

Things have changed, but the country remains the same. The meaning of these two poems is very similar to Luo Guanzhong's "Castle Peak is still there, and the sunset glow is a few degrees red". Later generations often use these two poems to describe the coexistence of green hills and the ups and downs of the world, but they can't bear to sigh.

Life is like a dream, and a bottle returns to the moon. (Shi's "Red Cliff Nostalgia")

Life is like a dream, so-called heroes and so-called career fame will surely vanish under the relentless impact of time. I want to pick up the turbid wine and drink a few cups to the bright moon on the river. The author laments that time is fleeting, personnel are impermanent, fame and fortune are illusory, and the heart turns from pain to sorrow, and finally it suddenly becomes clear. So these two sentences reveal the author's lofty sentiments.

Ah, there is love in life, and love is in the depths of madness. This is not irrelevant to hate-the wind overhead, the moon in the sky.

(Song Ouyang Xiu, "Lou Yuchun")

Love hurts and leaves since ancient times. Since ancient times, many people have suffered from love and are crazy about it; Pieces of sadness have nothing to do with the romance outside. Ouyang Xiu has exhausted the worries of many men and women in ancient and modern times, so it is no wonder that it will become an immortal sentence.