If sunrise is excitement, sunset is looking back!
To the fifty who will greet the splendid sunset
A humanities class that will impart healing, happiness, and life wisdom.

When you turn 50, you start to worry more about your future life.
How can we live without some kind of worry about how to accept and spend the rest of our lives? When we reach our fifties, having spent half our lives running without rest, we look for life's milestones that will show us where to find rest.
To do this, we learn enlightening philosophies, listen to other people's life stories, and read novels that awaken emotions.
The author, now in his fifties, also lives with concerns about middle-aged life.
I ponder how to organize and strengthen my relationships, how to maintain a healthy body and mind, and how to respect my child's life and help him or her blossom beautifully.
In an effort to find answers to these questions, the author has compiled the values ​​he has learned throughout his life and the principles of life taught by the humanities into this book, and has unfolded them in his own unique narrative.
This book is full of stories that will fill your fading days with a series of brilliant moments.
Rather than leaving the time spent with friends, family, and lovers as mere memories, I interpret it as a philosophy that has shaped who I am today.
And it makes the reader think about how to live his or her future life.
Fifty is the time to prepare for your second life.
The author wants to convey the realization that fifty is the age to enjoy a sunset that brings feelings of 'calmness', 'maturity', and 'humility' through this one book.

Confucius presented two criteria for a true friend.
Based on this standard, let's first look back and see if I am worthy of being a friend to others.
Let's decide whether we are treating them with 'loyalty' and not being sly, and thus whether we are a 'trustworthy' person.

--- p.20

I want my child to live happily, but that's not all I want.
I hope to become a person who knows how to be happy when he is happy and how to be sad when he is sad.
In human relationships, I hope to like people I like, love people I love, and hate people I hate.

--- p.48

According to Statistics Korea data released in September 2022, the average desired working age for the elderly (55 years old and older) is 73.
Most people want to continue working until they are in their 70s.
It takes longer to reach 70 than you might think.
So, from the age of 50, it is necessary to change to a posture of preparing for retirement in advance.

--- pp.79~81

To put it in Adlerian terms, 'I want to ~'.
However, it takes courage not to run away.
People in their 50s can easily fall into feelings of helplessness and regret compared to those in their 20s or 30s due to a decline in physical function.
The best way to shake off these feelings is to increase the things that bring you joy right now.

--- p.104

"The Old Man and the Sea" may convey a more meaningful message to the elderly, or those approaching old age, rather than to young people.
I, too, felt a sense of excitement during my second reading that I hadn't felt since I was a teenager.
After reading the novel, we can ask ourselves these questions:
Can you still challenge yourself in your old age? Or should you try now?
--- p.164

If you read a philosopher's book, you can read the 'conceptual language' (Plato's idea, Nietzsche's superman, Spinoza's conatus, etc.) that the philosopher uses.
The reason readers seek out philosophy books in bookstores is, vaguely speaking, to satisfy their intellectual curiosity, but more specifically, it's to get a feel for the conceptual language philosophers use and the framework of thought they create with it.

--- p.206

Among the books on etiquette and manners that have been passed down from ancient times, the most representative one is the Analects of Confucius.
If the word 'courtesy' sounds heavy and stuffy, it's okay to change it to 'manners'.
The reason why we need to speak appropriately, dress appropriately, and show consideration for others is because such a process makes us 'enjoyable.'

--- pp.241~242

If there is flowering, there is fading, and if there is life, there is death.
Because we don't know what happens to our souls after death, we feel emotions like anxiety, fear, regret, disappointment, sadness, and sorrow about death.
Death is an event equal to birth, neither bad nor inferior.
That is, we came out of death and lived, so we will only return to death again.

--- pp.293~294