To know the history of human beings is to know ourself.

The history of the world and human beings has evolved for uncountable years, so that now we still face with numerous misteries even if we develop our science and technology sophisticatedly.

Since there was a group of so-called humans long time ago, they began to explore the outside territory. And a few of them even went farther and migrated to the other areas. Then the difference was starting.

With the different surroundings, they needed to adapt to the new environment and exploited for their use. And at the same time, they developed their own tools.

Almost always, it was these adventurers who  explored the wider world and made vital changes to the world in return.

As they were exploiting the new territory, they were adjusting the environment and developing a new lifestyle maybe totally different from the former one. You can imagine, some of them were developing in a faster speed or in any manner. That is why there are developed and developing or even undeveloped areas on the same Earth.

From the history we somewhat know the importance of the environment, actually it is quite important. As we all know, even two twins grow up in the same enviromment with same family and education background, they still show significant difference in many aspects.

How can the reality be like that?

We can get into the situation with a personal and private perspective. As we can imagine, every single one of the twins has their own "social field", including their own friends and hobbies, opportunities and obstacles, etc. Every single element will add some irreplaceable changes to each llife.

Untill now, we just analyse the external components, but it is relatively important when we focus on the internal factors. It is our initiatives that give us the order to accept or reject the difference. It is our decisions that determine the next step.

Then, knowing ourself is the first step. Only when we know a series of what we are, can we nurture ourselves in a specific way.

Who I am, what I can do, what I cannot do, what I am good at, what I am lack of, what I like, what I dislike, and so on. Those are questions we all need to ask ourselves and get each answer.

That is  the way to develop a kind of personality that we admire in the dream.