This book collects seven classic Korean essays.
An essay is a piece of writing that freely expresses thoughts, experiences, and feelings without a set format.
Classical essays also contain the writer's characteristics in various forms.
Classic essays are essays written in the past, but they are not awkward to read today, and they tell us a lot.
The author of [Sleepless Theory] says that all life in this world is equally precious.
To illustrate this, compare a large dog with a small one.
In [Kyungseol], the author says that a dirty mirror can actually comfort people.
It is necessary to pretend not to know rather than criticize other people's mistakes.
[In the story of the seven sewing tools in the Gyujung Chilwoo Jangron-gi, the seven sewing tools speak like people and even get angry.
Seven friends fight over who owns the most important sewing tool.

[The Ceramic Theory] is a piece of writing that the author gave to his son.
To become the best thief, you must have a talent that you have acquired yourself.
The author says that the method to become the best scholar is the same.
[The Story of Seungmok] is a piece that compares two lumberjacks.
If you only pursue profit, you will lose what is truly precious.
The author says that the easier and quicker the gain, the more dangerous it is.
[Myoposeoseol] is a text about the attitude of management.
If the cat doesn't catch the mouse properly, the mouse will continue to do bad things.
The author says that if we do not punish those who are bad at management, we cannot stop their mistakes.
[Suojaegi] is a piece about the meaning of the name ‘Suojae’, which means ‘the house that protects me’.
‘Protecting myself’ means not being swayed by any temptation or benefit of this world.