Opening remarks
Chapter 1: Don't take it personally
Chapter 2: Living Simply
Chapter 3: Letting Go of the Obsession with Qualification
Chapter 4: I'm Not Sorry
Chapter 5: I Don't Hate You
Chapter 6: How to Defend Against Stress
Chapter 7: How to Overcome Frustration
Appendix: Diagnosis of Steel Mentality vs. Glass Mentality
Conclusion

A mental health guide for those who want to become mentally strong: "How to Become Mentally Strong."

People talk about the Golden Rule or empathy, saying that you should first treat others well.
But how far should we go? If we consider others' perspectives first, if we treat them as if they were our own, will everything go smoothly? He candidly reveals the truth that no one has readily shared.
Let me start with the conclusion.
If you do a good job without distinction between work and private matters, the other person will complain without distinction between work and private matters.
The more you try to make the other person feel comfortable and do a good job, the more likely it is that the other person will go crazy because they are uncomfortable with your presence.


"Isn't this crazy?", "Why are people so thoughtless?", "Oh my goodness! No one is sane except me!" If the number of crazy incidents and crazy people you see keeps increasing, the one who is truly crazy might be you, the one suffering right now! You who say you know ten when you see one, everyone knows when they see you.
You are the one with the glass mentality!

I recommend reading it as it is beneficial to both those with a strong mentality and those with a glass mentality.
Even with a strong mentality, there are times when a glass mentality exists.
It is a very enjoyable read, encompassing not only Eastern and Western history and classic masterpieces, but also famous people and examples from our neighbors.
The author's signature witty banter is a bonus.


The readers who are expected to benefit most from this book are:

People who feel sorry and anxious because they feel like they burdened others by trying to express gratitude, or because their worries were filled with jealousy, or because their well-intentioned actions somehow caused harm.
People who seem to be spewing out reproaches pretending to be questions, scolding others pretending to ask what they think, and who have difficulty expressing themselves smoothly.
People who suffer because they feel like they can't control their emotions at the slightest discomfort, burst into tears, and explode with anger, but others become overly angry and mercilessly attack them when they show even the slightest discomfort.
People who feel like they've done too many things wrong, but then get so angry that they wonder what they did wrong.
People who can't sleep even though their whole body is tired because their thoughts keep going in circles and drive their minds to hell.
People who suffer by delving into the tone of voice, facial expressions, each word, and even the hidden meaning between the lines of others, and who wish people would just be honest and without hidden meanings.
Conversely, I hope that people will understand the deep meaning and seriousness of the words I hide in my soft words and take good care of me.
People who thought they had seen through other people's malicious intentions, but then realize that they had been passing the buck without knowing the other person's circumstances, and then feel ashamed and guilty.
People who think they know what other people are thinking and curse at them, but then curse at them again because they have no idea what other people are thinking.
People who beat their chests in frustration because they don't know why others don't understand their true feelings and don't express their true feelings at all.
People who, at the mere mention of “Why is this happening?” or “Am I doing something wrong?”, become aggressive, lose their temper, and spew out “What do you think I am?” while at the same time, they quickly snap and rebel at others, saying “Why are you like this? What do you want me to do?”
People who, unable to bear the gap between their ideals and reality due to their overflowing narcissism, end up bearing the pain of self-loathing, depression, and other suffering.
People who complain and grumble like a river, no matter how much people from all sides try to give them this and that. People who look like princesses and princes to others, but who cannot love themselves at all, wandering at the bottom of a dry valley of lack of affection, banging their heads.
People who were good people as good children, good parents, and good companions, but who only brooded over their bad sides as bad children, bad parents, and bad companions, and through deep reflection and self-torture, ended up driving those around them the most cruelly.

And those who have a hard time around these people.

I hope that everyone's hearts will become more at ease.
This book was created for everyone who feels that life is not easy at all.
I simply want to live well as a human being, working hard each day, but why is it so difficult? The author boldly teaches you how to shake off the sadness in your heart and the burden on your shoulders.
It's not a way to take it off.
It's a way to get rid of it.
This book is to cheer you on as you shake off your worries and run lightly today.

We all know.
How rough life is, yet how beautiful it is.
This book will help you enjoy life with more peace of mind.
You can go on with your life just fine.


Reader Reviews

People are made by their actions, not their circumstances! I've been feeling this deeply lately.
In the end, it's not the special person, but the person who takes action that creates the results.
And to survive till the end.
Just a few years ago, I was the embodiment of laziness, but now I have become someone who has no choice but to move just to survive.
Above all, the biggest thing I learned was how to be happy without being obsessed with happiness. - Mul***
-My head feels refreshed.-Gin***
-That's right, I used to completely destroy myself by figuring out the intention and grasping the great meaning from something so trivial! Seeing it as a natural object, like a vast forest, has made my relationships much easier. -st***
-Life seems to be changing.
I have to read it a few more times.
-dream***
-Every time, it's unprecedented.
People's lives every time.
-jin***
-Fresh and profound insights.-wb***
-The most practical and creepy.-No***
-I used to think it was amazing how you always gave me the perfect solution whenever something happened to me, but now I see that they were actually laws of the world I didn't know about. -da***
-Easy and accessible.-ra***
-Clearly hit me with the point that I was tormenting myself with.-!!***
-Stop just talking and acting! You're the best! -lw***
-That's really good.
I think both men and women can look at it with a comfortable gaze.
Ah, that feels so good. -Mu***
-It's difficult, but with a farmer's heart, slowly and steadily. -You***
-A truly remarkable book that will change your perspective on life. -al***
-I read it twice because I didn't quite understand the part about being able to have a sense of privilege but not being entitled to it.
After reading it, I feel like the screws that have been holding me back are slowly loosening.
Now I have to unscrew that screw. -th***
-I've become much more comfortable as I let go of the illusion that I should have been better at detailing. -Ka***
-I don't think there is a cognitive therapy textbook as good as this one.
Don't expect any rewards, ignore the details.
Even if you do this, you won't get sick. -Lot***
-I got hit in the bone again today and was carried out.-li***
-I feel like every single word is true.-Ha***
-My head feels dizzy.
Now I know exactly why I've been living like such a cripple.
Something to re-read periodically. -ji***
-I thought it was a call to action, but after reading it, all I could do was cry... -Ppa***
-Until high school, I thought I should be rewarded for the effort I put in, but as I lived, I naturally realized that wasn't the case... that effort and results are separate things.
It feels good to have it confirmed in writing once again. -Se***
-My mentality is the child I gave birth to.
I totally empathize.
Let them live well on their own. -ch***
-What if it gets a little dusty?
It was originally dirt.
So what if it gets a little shabby?
Surviving as dust in space.
Nothing is more important than that. -st***
-Think simply, laugh it off instead of defending yourself and making excuses, and take action instead of worrying.
It was very helpful.
Thank you. -hw***
-This is really good content.
I'm becoming much more calm. -Q***
-Until now, I used to get depressed when I saw others being jealous because of their defeatism, but now I'm not jealous anymore.
I have no other thoughts. - That***
-The wind is blowing.
I have to live. -mi***
-I don't mind spending money.
Time wasted hesitating is a waste. -jm***
-thank you.
I won't give up.
-cow***
-I read it late, but I was touched by the sentence, ‘You can just leave the world alone.’
I think I can change what has made me defensive all this time, what has made me tired of being censored as a person.
Thank you. -su***
-I think the reason my mentality was broken was not because of the changes in the environment due to the people around me, but because I tried so hard and gave up so much and thought that it wasn't working out.
Do it until it works.
Continue.
I should try it. -am***
-My boss said today that I'm incredibly defensive when I feel attacked. After all the criticism about me, I couldn't stand it and went down the path of regular soldiering.
He was very motivated and passionate about his work. -am***
-Looking at this, I did all sorts of things to my former team leader, but I shouldn't do that anymore. -lu***
-A word I'll take to my grave.-me***
-It's worth the money.
What would have happened if it hadn't been there?
Thank you. -Ye***
-All the knots were loosened, and I sobbed silently, because I was so happy. -di***
-This is a writing that saves people.
I don't know if he's trying to save himself by writing, but he's also saving others who read his writing, but in any case, I feel a strong life force in his writing that never goes out.
This article is like the water of life to me. -ye***
-When you make a problem out of something that isn't a problem, you suffer losses and become sick.
Let's live without knowing the subject.
Like the Stone Age. -Bam***