Guess of Two Human-Species

«sinanthropus»

People with the bigger right brain immigrated to the East, and the opposite moved to the West via the East.

When Pandora"s box was open, on the difference of the quantity of emotional hormone secretion, the ancestors decided their own social life.

neanderhal

The Westerners live with laws, but like standing in a mass of floating pebbles, people in the mess are unable to dodge away.

The Easterners live with passions, but like falling into a pool of mud, people get stuck in the glue pot.

Now, the East and the West want everywhere to have laws and passions; it is much better to firstly ask the old ancestors about why to separate at that time.