Constitutional system because the government, when setting up rules or laws or anything of the sort, it would have to abide by the Constitution which limits the governments power.
The opening of King's speech uses metaphors to compare the promises of freedom made in the Declaration of Independence, the Constitution and the Emancipation Proclamation and the failure of these documents to procure those freedoms for all. He then turns to a metaphor familiar to all--the weather.
Quote: "This sweltering summer of the Negro's legitimate discontent will not pass until there is an invigorating autumn of freedom and equality."
Metaphor: King compares the legitimate anger of African-Americans to sweltering summer heat and freedom and equality to invigorating autumn.
Analysis: Anyone who's visited Washington D.C. in August has a keen understanding of what a "sweltering summer" produces--frustration, suffering, restlessness and a longing for relief. The hundreds of thousands in attendance would have clearly understood the implications of the need for relief from a sweltering summer day and the need for legislation that would procure rights for minorities; relief that began to arrive with the Civil Rights Act of 1964.
I can give you my take on it:
In command economies the quantity and more importantly the prize of the products is decided by the government and not by the people in production. As a result, people in the production can't have the motivation of producing more, as they won't benefit from it. So command economy encourages low motivation among the workers (i believe this was the case in the Eastern Block)
