Why do I decide to go away this?

It is  very hard to say  about  this  ,  because I really  love  and  like  to make  team  here  and to improvement  of  the technology  but  what  thing  that I  must do , it  related  to  the  idea  and  the  environment   of  the body. we  can  not  say  again  and  again  on  the  same problem  everyday  that  it  have no  one  look  it   on  yourself  mistake because  we  can not correct  our mistake  by our self   but  other  that  around  us  can see  it  and  make  it  perfect . The reason , it  depend on your skill  to  look after  it . Any ways ,  we  are  the real person  , so  we  must  try  to cross  everything  that  around  us  to  know  that  what  happen  to us  to make  it   to be  strong  in the future. Sometime  ,  we  try to void  the mistake  for  life  ,  but  we  can not  do because we  are  people   so  we  must  live  with mistake  but  we  can reduce it from day to day  by improvement  the knowledge  that  we  have with  society and other  people  that  around  us. On the other hand , we must  live  with  happy life  in society  with  what  we  have . 

What is the Science ?

Science (from Latin: scientia meaning "knowledge") is an enterprise that builds and organizes knowledge in the form of testableexplanations and predictions about the world.^[1][2][3][4] An older and closely related meaning still in use today is that of Aristotle, for whom scientific knowledge was a body of reliable knowledge that can be logically and rationally explained (see "History and etymology" section below).^[5]

Since classical antiquity science as a type of knowledge was closely linked to philosophy. In the early modern era the two words, "science" and "philosophy", were sometimes used interchangeably in the English language. By the 17th century, "natural philosophy" (which is today called "natural science") had begun to be considered separately from "philosophy" in general.^[6][7]However, "science" continued to be used in a broad sense denoting reliable knowledge about a topic, in the same way it is still used in modern terms such as library science or political science.

In modern use, science is "often treated as synonymous with ‘natural and physical science’, and thus restricted to those branches of study that relate to the phenomena of the material universe and their laws, sometimes with implied exclusion of pure mathematics. This is now the dominant sense in ordinary use."^[8] This narrower sense of "science" developed as a part of science became a distinct enterprise of defining "laws of nature", based on early examples such as Kepler's laws, Galileo's laws, and Newton's laws of motion. In this period it became more common to refer to natural philosophy as "natural science". Over the course of the 19th century, the word "science" became increasingly associated with the disciplined study of the natural world including physics, chemistry, geology and biology. This sometimes left the study of human thought and society in a linguistic limbo, which was resolved by classifying these areas of academic study as social science. Similarly, several other major areas of disciplined study and knowledge exist today under the general rubric of "science", such as formal science and applied science.^[9]