Human relations solutions that understand people and move their hearts
'I can expand my world through human relationships!'

★ Korea's representative knowledge YouTube 'Knowledge Inside' ★
★ A beloved channel with 2.5 million subscribers and 530 million cumulative views ★
★ Top 10 Most Popular Creators of 2023 and 2024 ★

The first book of Korea's leading knowledge channel, 'Knowledge Inside', boasting 2.5 million subscribers and 530 million cumulative views, has been published by Mix Coffee.
It explores various aspects of human relationships, from how to overcome bad worry habits, the secret to escaping the hell of comparison, the art of giving heart-touching compliments, and even the secret to building harmonious family relationships, examining mental health, psychological counseling, and communication from a humanistic perspective.
Stories that seem easy but difficult, and shallow but deep, are told in an interesting and understandable way by knowledgeable authorities.
There is a warm gaze that maintains the relationship without losing me.


"Knowledge Inside: Human Relationships" is the ultimate humanities textbook, filled with knowledge and wisdom about work, love, and relationships.
We filled in the parts that were not covered in the video, corrected inaccurate expressions, placed sensuous illustrations in the right places, and added key points and prescriptions for human relationships, trying to reach readers in a way that is more in-depth and easy to understand than the video.
You can look forward to a book armed with a different charm from the video.

When everything is going well, when things are going well, when things are bright, there are people who are nice to hang out with and nice to be with.
When the dark night of the soul comes, when the harsh winter of life comes, there are people who give us strength.
Just having those people around you helps you recover mentally to some extent.
While anxiety is contagious, so are strong inner feelings, such as a sense of challenge, security, and resilience.
So, protecting someone else's mental health is possible just by being by their side as someone with a strong mental health.

--- p.34

There are ways to maintain self-esteem.
You just need to have one or two things you're good at.
For example, there are people who know a lot of movie titles.
For him, knowing a lot of movie titles is a huge source of self-esteem.
That alone makes me think, 'No matter how good you are, I know movies best.'
Regardless of the general notion the world has given us of 'this person must have high self-esteem', we need to have our own self-esteem measurement.
For some, it's a movie, for others, it's a marathon, and for others, it's a book.
That's why this society needs to accept diverse values.

--- p.54

Aristotle once said, “The good fortune of others is suffering.”
When people see that someone else has something they don't have, they go beyond envy and even feel pain.
But in this day and age, social media is constantly amplifying people's psychological anxiety.
It's true that people all over the world are comparing themselves to others.
Windy Dryden, a British expert on cognitive behavioral therapy, called this “comparison disease.”
Especially in Korea, comparisons with others are extreme.
I wonder if indiscriminate successism and the stigmatization of the socially disadvantaged are hidden behind it.

--- p.81

I think it's necessary to respond appropriately rather than react.
It wouldn't be good to be so stressed out by interpersonal relationships that you cut off all of them.
Also, it is not good to always bow down and enter into all human relationships.
On the other hand, it wouldn't be good to fight back in all human relationships.
I think it would be good to continuously practice in a balanced way according to the intention and context that suits each situation and characteristic.
When you find yourself overly accommodating to others or caring too much about their evaluations and thoughts of you, you need to practice thinking about yourself first.

--- p.112

They say that when you try to listen, your whole body should be turned towards the other person.
Not only your eyes, but your face should also be turned towards the other person, and the direction of your shoulders, torso, and even your feet should also be turned towards the other person.
That way, the other person will understand that I am 100% willing to listen to what he or she has to say.
Since then, whenever I have a conversation or an interview, I try to focus my whole body and soul on the other person.

--- p.161

American psychologist Carl Rogers said there are three key conditions for a counseling relationship.
Empathic understanding, unconditional positive regard, and truthfulness or congruence.
Among them, unconditional positive respect matches the case of Director Choi Myeong-gi.
It is about unconditionally respecting the other person, their very existence.
“You can do that,” or “Your very existence shines.”
It can be said to be one of the techniques of complimenting that moves people's hearts.

--- p.174

If a package arrives without you even ordering it, shouldn't you not accept it?
Because it's not mine and I don't even know what it is.
So if you don't receive it, it will be returned to the owner.
I think rude words are the same.
I don't accept the other person's rudeness towards me.
I guess it would be right to say that I'm ignoring it.
Whether you say rude things or not, I won't accept it, so I'll take it back.
Then the rudeness is not mine, but the master's.

--- p.216~217

British psychologist and psychiatrist John Bowlby created 'attachment theory' in the late 1950s.
It is a theory that explains the fundamental causes of long-term human relationships, starting with cases of infant development and expanding to cases of adults.
They are divided into stable, anxious, and avoidant types.
The stable type is a type that values ​​self-affirmation and others-affirmation, expressing their emotions honestly and naturally accepting the interest and love of others.
I tend to treat myself and others equally.
Meanwhile, the anxious type is a type that denies self and affirms others, and the avoidant type is a type that denies self and affirms others.
The dissonance between the anxious and avoidant types will create a difficult relationship.
I think stability is the key to building harmonious family relationships.

--- p.254