Answer: The mountains, which served as natural barriers and boundaries, dictated the political character of Greece. From early times the Greeks lived in independent communities isolated from one another by the landscape. Later these communities were organized into poleis or city-states. The mountains prevented large-scale farming and impelled the Greeks to look beyond their borders to new lands where fertile soil was more abundant.
What the three cases have in common is that they were all victories for the people and their amendment guaranteed rights against states who wanted to obstruct those. The first case was about preventing states from limiting freedom of speech, the second was about preventing illegally obtained evidence from being used in court, and the third was that the states have an obligation to provide a lawyer to criminals if they can't pay for them.
So they can govern themselves and do what the people want.
