"Happy families are all alike, and every unhappy family is unhappy in its own way." What does it mean?

Meaning: Happy families seem to be equally beautiful and impeccable, while unhappy families always have all kinds of disharmony, all kinds of disasters or pains.

Source: The first sentence of the first chapter of "Anna Karenina" by Leo Tolstoy, Russia.

Analysis: Leo Tolstoy’s sentence “Happy families are all alike, every unhappy family has its own misfortune” and the Chinese proverb “Every family has its own scriptures that are difficult to recite.” "There are different approaches but the same effect. Every family has some difficult things that others don't know about, and every family has worries that are different from others. The seemingly happy family also has its own troubles, but they just don't say it out loud.

Extended information:

Background of the work:

"Anna Karenina" is a novel written by the Russian writer Leo Tolstoy. It is also his representative work. Tsarist Russia in the second half of the 19th century coincided with the Russian serfdom reform in 1861, and the entire society was in a special period of rapid transformation from an ancient, conservative feudal society to an emerging capitalist society.

Appreciation of the work:

In the novel, Tolstoy depicts two different lives: the urban aristocrats stay away from nature and slowly lose their natural emotions for selfish desires; In the competition between "animal nature" and "human nature", the good self is gradually abandoned for one's own selfish desires. It was in the natural environment and in real labor that the rural aristocrats exercised their bodies, purified their souls, and gained real happiness.