King said: “I have a dream that one day this nation will rise up and live out the true meaning of its creed: "We hold these truths to be self-evident: that all men are created equal". The greatness of this speech lies in the greatness of a man and his struggle against racism and racial segregation. And the power of these words comes from the absolute truth of a message carried mainly by the arm. Imagine a man in front of two hundred and fifty thousand people who at a certain point puts aside the sheets and chooses to point his gaze in front of him and to give voice to his heart, with the risk of possible consequences. These are words that touch, that make you think and that should be reread above all to try to recover the flavor of universality and brotherhood of the human race that nowadays seems to be increasingly lost in an inhuman gender.

Nelson Mandela is considered one of history's most inspiring leaders. "We will build a society in which all South Africans, both white and black, will be able to walk high without any fear in their hearts, certain of the inalienable right to human dignity, a rainbow nation at peace with itself and the world." Nelson Mandela made this speech when he was appointed President of South Africa on May 10, 1994. Promoter of the new image of South Africa, Mandela committed himself to building the "rainbow" nation, urging him to get up from the oppression that the black people suffered and to create something new, better, great. He said, "Sometimes it's up to a generation to be great. You're that great generation. Let your greatness blossom. Of course the task won't be easy. But not doing it would be a crime against humanity, against which I now ask all humanity rise ".

Obama said: “Yes, We Can”, a particularly simple slogan, built by only three monosyllabic terms, which increase its ease and immediacy for the people but conveying a strong meaning: "Yes" expresses positivity and concord; the subject of the phrase, "We" denoted a feeling of inclusion, of alliance between the presidential candidate, and his audience; Finally, the verb "Can" emphasizes the possibilities of action, of realization. The formula relates to the idea of exceeding all limits, a key concept in the rhetoric of the American Dream. This allowed the image of a candidate around Barack Obama who somehow embodied the spirit of three great personalities in American history: Abraham Lincoln, John F. Kennedy and Martin Luther King.

"This was their finest hour" was a speech delivered by Winston Churchill to the House of Commons of the United Kingdom on 18 June 1940, just over a month after he took over as Prime Minister at the head of an all-party coalition government. The exhortation , even at a moment of great apparent danger to British national survival, talks not only of national survival and national interest but also of freedom, Christian civilisation and the rights of small nations for which Britain was fighting and for which Churchill thought the United States should and eventually would fight.

In my opinion, it is possible join Nelson Mandela, Martin L. King and Obama with the word passion. it is precisely with passion that they managed to change a world that seemed destined to hate them.

"I have a dream" and "yes we can" are loud cries, aimed at changing a world that, despite many years having passed, has presented inequality and discrimination against that population considered lower.

I believe that Obama, although our contemporary, has exposed the idea of ​​N. Mandela and M. L. King in a "simple" concept.

"Yes, we can save this nation. Yes, we can save this world", each of them has a new project starting from their own country, which does not exclude anyone and which is based on a solid and united community.

In conclusion we can say that Obama embodies the dream of M. Mandela and M. L. King, a black man, who came to power and led one of the most powerful nations.

All this tinks are the result of a millennial process, which starts from the "Agorà", "Acropolis" and the "Forum" to finish today.Since the born of time, the person has tried to establish a stable relationship with the other;to have feedback, correspondence, a link that explain the existence of the person to himself. Like i said before the words are fondamatal for ours lifes, we can use it to communicate, share emotions, describe sensations , make a talk and take decisions.Another exemple is music that use words to make social complaint like “Another birck in the wall”.But now we have to focalize how words changed the story of ours and others lifes.The story is “son”of a dialectic and social events, very important events.

And sometimes are person that make the story, with their skill, today we live in a world that is certainly different from that of 100 years ago, thanks to the evolution of thought, intelligence and belonging to the human species.The word is a fundamental vehicle that helps us daily in these processes.

This “good” man that have used words to move ours life and soul, and they make this by “speech” that is the bridge that start from their soul and arrive to ours.

A good speech can change the course of history. From Jesus Christ and Seneca, we know that the word, oral or written, has enormous power, and this implies a great responsibility, because it can provoke war or bring peace, it can move or arouse hatred, it can raise hearts or sink hope. It can make or destroy.

Certenly one of the most important man is Winston Churchill that make a historical speech known as “Tears, sweat and blood” May 13, 1940. The British Prime Minister pronounced it in front of the House of Commons, in London, demanding collaboration and sacrifice to defeat Germany when World War II had already started eight months ago. This sentence (Tears, sweat and blood) has gone down in history, and Churchill has repeated it in other speeches. “I would say to the House as I said to those who have joined this government: I have nothing to offer but blood, toil, tears and sweat. We have before us an ordeal of the most grievous kind. We have before us many, many long months of struggle and of suffering” . This intervention literally changed the course of the war because it managed to feel in hope to a terrified country.In this case we can see how a single speech changed the story of WWII and maybe whitout it today we not exist.

Now i would talk about two men that changed the “black”people’s life, these two are Martin Luther King and Nelson Mandela. Martin Luther King, “I have a dream”.Washington, August 28, 1963. 5 years before he was assassinated in Memphis, he gave a speech full of biblical references to 200,000 people, about equality between people in the context of non-violence. This intervention will presuppose a before and after in the history of the United States in defense of civil rights. «I have a dream that my four little children will one day live in a nation where they will not be judged by the color of their skin, but by the content of their character. I have a dream today!».Commonly considered a masterpiece of rhetoric, King's speech invokes the Declaration of Independence, the Emancipation Proclamation and the Constitution of the United States of America. At this point he use a lot of anaphoras, with which the emphasis of the speech is strengthened. "I have a dream" is repeated eight times to enhance the image of a unified America in the name of integration; but to be repeated over and over there are also "now is the time", "some of you have come", "come back", "we will be able", "finally free", "who freedom echoes »,« we can never be satisfied ».

The second one, Nelson Mandela is a man that follows the way of King but in another place,Africa.He too has always fought for justice, for individual freedom and freedom of thought.

He always distinguished himself by helping "his" people even when he came to prison. After 27 years of captivity, Mandela's election marks the end of apartheid.The famous speech is delivered in Pretoria on May 10, 1994.

“I fought against white domination and fought against black domination. I caressed the ideal of a democratic and free society in which all people live together in harmony and with equal opportunities. It is an ideal that I hope to live for and hope to achieve. But if necessary, it is an ideal for which  i am ready to die”.

The last speaker I will speak is Barack Obama,ex president of the USA, he is and has been one of the most influential figures of our century so much that he has returned as a politician and public figure in numerous Forbes rankings.

Certenly he was loved by americans becouse he was really “human” with rich and poor and helped them with a lot of new laws that protect them and their healty.Barack Obama's political career has been marked by a huge amount of memorable speeches in terms of intensity, importance and effectiveness. The simplest objection at this point is: they are simply words?. But Obama's words on more than one occasion had concrete consequences, they have changed the life of billions of people and in general, political discourse has always been a formidable means of influencing public debate.Obama himself provided perhaps the best answer to this question during the 2008 election campaign.

“Don't tell me that words don't count”

This is the first phrase of his speech but i will not write other thinks about this debate.I’d like that anyone will document about this and say something to itself and answer to his question.

Prof. scusi se è uscito troppo lungo, spero non sia un problema,ma la traccia mi è piaciuta molto.

“I learned that courage was not the absence of fear, but the triumph over it. The brave man is not he who does not feel afraid, but he who conquers that fear.”  Or this: “Difficulties break some men but make others. No axe is sharp enough to cut the soul of a sinner who keeps on trying, one armed with the hope that he will rise even in the end.”
the fist anerican black president was Barack Obama, he is an American politician and attorney who served as the 44th president of USA from 2009 to 2017. 
he is a great speeker too, he has(like the other three) the gift of the semplification, but he can use an other power of words, the evocative force of they, indeed Obama used specific and concrete words to conjure powerful images in our minds. one example from one of his speeches is here:

“And, above all, I will ask you to join in the work of remaking this nation, the only way it’s been done in America for 221 years — block by block, brick by brick, calloused hand by calloused hand.” 

This characteristic way of comunicating has proven during the centuries its efficiency not only in the everyday life but expecially in the speeches and in the oration of historical characters in which is express all the comunicative power of word.

Indeed the use of rhetoric played a crucial role in personal affirmation within the society but what make the difference is not the “simple” ability of using words but the ability of the orator to infuse emotion.

Some of the most important orator of our time are Churchill ,Obama ,Mandela and Martin Luther King that rapresent charismatic figures and a perfect example of how is important the emotional component ,meant as involvment of the listeners , in a speech.

In particular i want to underline the determinant influence of King and Mandela’ speeches in which , for me ,is contained an important and innovative element: the use of word aimed at defend the human rights and the brotherhood among the men.

Often ,the use of word’ s power is linked to personal affirmation ,that some times correspond to the affirmation of proper nation as in the case of Obama and Churchill(state leaders) ,and not to the disinterested defence of human right.

So i think that ,also if Churchill and Obama’ speeches rapresent important tile for the human’ s right and freedom of every one ,the biggest innovation reside in the message of true hope and  true equality expressed by the King and Mandela’ s oration because i attribute to them the highest grade of civilization.

 

Obama is considered by many to be one of the best five speakers ever, he has known how to combine technique, in some cases he has innovated with new techniques, passion and like other leaders he has studied to reach this level, precisely because he is aware of the strategic importance of communication. It started from the famous "Yes We Can" as a symbol of the possibility of doing, of going beyond any prejudice and obstacle.

During the 2008 election campaign, Obama proved to be a very talented communicator. Not only was his rhetorical style effective, but after some incendiary comments from his pastor had threatened to derail the campaign, he made one of the best speeches about the breed since King's day.Martin Luther King, infact, was a disruptive leader. He went against the status quo and demanded change! He saw something wrong and he changed it! Sometimes it’s okay to be rebellious if you’re rebelling against the right thing for the right reason. Martin Luther King said we have a moral responsibility to disobey unjust laws. Martin wasn’t afraid to disrupt the system and speak up and stand up for what was right. He didn’t have a problem speaking against and standing against what was wrong. He was disruptive. He disrupted the norm to implement change. Martin Luther King once said “our lives begin to end the day we become silent about things that matter.” We have to stop being timid and quiet about things that need to be changed. We need to make a difference! Don’t be afraid to make a change! Use your influence and your platform to disrupt somethings!

Winston Churchill, is another leader who was able to fight alone, a head held high, against everyone, managing to save his nation, Europe and therefore western civilization. He was a very unlikely leader: he drank whiskey for breakfast, he was addicted to cigars and had an irascible character, but in the face of Dunkerque's humiliation he knew how to stand up and a hesitant king, beat the pro-Nazi government plots and give the Gran Brittany, the personal and political guide, the consent not to yield to Hitler and therefore to arrive, five years later, to his total defeat.

This is the leadership from which the West was born, of which we are all citizens and are such and many examples that can motivate young people of all times and places in which to face the most difficult developments for the common good. In order to renew and consolidate the values ​​that most belong to us.