Liberals also believe that – consistent with their belief in the "[[Idea of Progress]]" – since the state of humanity is improving, national sovereignty is outdated and should be replaced with a world government where all of humanity will be united and will be at peace with each other. | Liberals also believe that – consistent with their belief in the "[[Idea of Progress]]" – since the state of humanity is improving, national sovereignty is outdated and should be replaced with a world government where all of humanity will be united and will be at peace with each other. |