1) The Red circle (the smallest and closed one ) you and only you ;this is an exclusive information that you can share it by your self only,all your privileges are but on it ,closed with your self.
2) The Orange circle(more wide) in which we share information with our friends and families .
3) The Green circle(the most wide) in which we share knowledge & information with all society.
We can divide human knowledge into three circles:
1) The Red circle (the smallest and closed one ) you and only you ;this is an exclusive information that you can share it by your self only,all your privileges are but on it ,closed with your self.
2) The Orange circle(more wide) in which we share information with our friends and families .
3) The Green circle(the most wide) in which we share knowledge & information with all society.