Although everyone reacts differently, everyone has the same ability to solve problems.
Anyone can harness the magical gift of uncertainty and conquer their worst fears.

--- p.11

Benjamin Franklin famously said, "In this world, nothing is certain except death and taxes." But are death and taxes any different? Aren't they equally uncertain? In short, human life is full of uncertainty.
Moreover, any certainty we feel can be shattered by one unexpected event.
--- p.15

What causes us to feel anxious are the 'negative thoughts' that come to mind in uncertain situations.
It is very important and useful to realize this point.
First, we can determine whether a person can deal constructively with uncertainty, and conversely, whether a person is completely overwhelmed by uncertainty.
You can also guess the reason.
Going a step further, you might even get hints on how to master the art of dealing with uncertainty, face it calmly, and discover the hidden potential within it, thereby finding a ray of hope.

--- p.19

If you have a high need for closure, you probably prefer order and predictability in your life.
He has a firm personality, communicates his thoughts clearly, and is not afraid to make too many countermeasures or conditions.
Also, once you've made up your mind, you're less likely to abandon your initial idea when you encounter opposing arguments, information, or viewpoints.
Rather, you will feel offended and irritated if someone disagrees with your opinion or presents a different point of view.

--- p.29

It is not entirely disadvantageous or entirely advantageous to have a high or low need for closure.
(…) Although there are times when a hasty ending comes at a high price, people with a high need for closure tend to be devoted to those around them, their families, their beliefs, and their country.
These people can be role models of mutual commitment and sacrifice, which can be seen as pro-social strengths.
Conversely, people with low need for closure are more likely to come across as indecisive and ambivalent, but they are also open to uncharted territory and new ideas.

--- p.37

We all try to avoid uncertainty or get closer to it.
Because our lives are so full of daily judgments and decisions, the need for closure influences almost everything we do.
Therefore, knowing your own tendencies can be very helpful in situations where you might be blinded by a desire for certainty and closure, thereby failing to recognize important considerations or ignoring the other person's valid arguments or objective information.

--- p.39

Without certainty, we end up in an ambiguous state of neither here nor there.
You may be stuck in 'analysis paralysis' and unable to think or act on anything.
Potentially, the information gathering phase before making a decision is never-ending.
Because there is no objective signal anywhere that tells us that we have gathered enough evidence to be confident that it is the right decision.
If we don't make up our minds, all sorts of things will happen to us unexpectedly.
The world doesn't wait until we're fully prepared.
If we don't make decisions, circumstances will make decisions for us.

--- p.52

When we try to avoid uncertainty, we end up craving the feeling that we are 'seeing clearly'.
To do this, they gloss over exceptions and cover up evidence that doesn't match their claims.
People often use rhetoric that draws clear lines such as 'us versus them,' 'good versus evil,' and 'right versus wrong' in various ideologies (e.g., nationalism or racism), and they often display dichotomous thinking.
The reason people get caught up in black-and-white thinking is because this way of thinking brings peace of mind.

--- p.156

In the Western and superhero genres, having a definitive happy ending is very significant in itself.
Not only does it provide a satisfying cognitive closure, but it also fulfills the deep-seated desire of those who long for positive closure.
When the heroes we root for win, it always feels like the world is running smoothly.
We need confirmation that we are on the right side.
--- p.161

Why does a heightened need for closure lead to a decline in empathy? The answer is quite simple.
This is because, driven by the desire for closure, we cling to our own thoughts and our ability to see ourselves from another person's perspective diminishes.
As the need for closure increases, we begin to take our reactions for granted, as if they were everyone else's reactions.

--- p.177

For some, uncertainty reminds them of potential danger and evokes pent-up fear.
For others, uncertainty evokes the thrill of adventure and discovery.
It also comes with the meaning of new possibilities that promise satisfaction, glory, and presence.

--- p.217~218