Question

The concept of one person,one vote,one value has been accepted by almost all countries of the world.justify the statement.

Answer 1

"One person, one vote" is essentially a belief in the collective common sense of the people and that "all men are created equal" as others have mentioned.  It's the way it must be in a free society; otherwise, only powerful interest groups would decide who merits more influence (likely themselves).

However, there is a danger.  Remember JFK: "ask not what your country can do for you -- ask what you can do for your country"?  It seems that has been reversed recently: "tell your country what it must do for you, because you deserve it."

Here's another quote:

“Democracy cannot exist as a permanent form of government. It can only exist until the voters discover that they can vote themselves largess (liberal gifts) from the public treasury. From that moment on, the majority always votes for the candidates promising the most benefits from the public treasury, with the result