In my contacts with many people through work, I have felt very bad on several occasions because they have been extremely arrogant beyond my imagination. At such times, this situation is not something I can control, and he probably must have been spreading a sense of disappointment by behaving in the same terrible way not only to me but also to many other people. I pacified my anger by thinking like that. I should just pass it off as far as possible. Probably because it is so.
 
Do not react too much to such disappointments. Like a judoka who uses the force coming towards me to throw my opponent. It is important to be aware of my own measure (standard of value ), to recognise my own value and to remain flexible and calm, without being stirred up. What have you said? and must be cast aside and successfully get by.
 
Furthermore, a way to mitigate the sense of disappointment caused by such self-centred people is to distance yourself. There is no need to get along with someone who makes you feel offended. Rather, it can be hard on your mental health if you don't actively keep your distance. It is a productivity issue and such unfortunate people have a tendency to take other people's time for granted, so if you are not careful, they will consume your precious time as a matter of course.
 
Such unfortunate people seem to feel dissatisfied with their own unreasonably low treatment compared to others. Therefore, they are strangely overbearing towards others, put them down by relentlessly looking for mistakes, and have no qualms about depriving others. Because they mistakenly believe that they are ‘pitiful’ while those around them are doing well by behaving so well. Like the unfortunate miser who has no qualms about passing on too much of his boss's pressure on him to the weaker subcontractors. Even though many people feel more or less unreasonable but struggle to get a fair evaluation.
 
The root of the above disappointments seems to stem from an excessive fixation on competition - an ‘ego’ that wants to feel that it is superior to others, that it earns more, that it has more, and so on. I also want to drive a cool car, live in a wonderful house, have a high social status, and so on. But I don't feel like flaunting my glory on social networking sites. Everything is fine in moderation. I don't want to be too attached to others' envy, evaluation, etc. I want to value what makes me feel comfortable more than anything else.
 
Travellers lost in the forest should not wander around or stop, but keep walking in one direction. In the end, he should be able to escape from the forest.
Descartes, from Discourse on Method.