As an adult, we always feel lonely which is very different from what we felt as a child. In an adult's daily life, working, taking care of children, making money are the whole. In nowadays' society, all kinds of resources are limited which need us to do our best to get them, but only few of us get promoted and earn more money. Competition or peer pressure exists everywhere. Your education and your ablity on your job are not always that important. Sometimes, it seems like that the skill of keeping a good relationship with your boss and colleagues is the key to be successful. We called this EQ (emotional quotient). Even if you have a a high IQ, you'd better intentionally hide it without being envied by others. Don't make anyone to be your enmies. In someone's mind, Getting benefit looks like the only standard to think about others. It reminds me of the relationship between each other many years ago. We use the word "steely" to describe it which means nothing could broke it. Now, we use the word "plastic" to describe the current interpersonal relationship which means it can be broken easily.