Centrist Emmanuel Macron took power as president of France on Sunday in a sumptuous inauguration ceremony in the Elysee Palace presidential residence in Paris following his May 7 election victory.
"For decades #France has doubted itself.felt threatened in its culture, its social model (and) its deep beliefs, (France), doubted what it is made of", he added.
Republican guards arrive for the formal inauguration ceremony of Emmanuel Macron as French president in Paris, Sunday, May 14, 2017.
"The division and fractures in our society must be overcome", said the 39-year-old centrist.
On Thursday Mr Macron's party announced a list of 428 candidates - majority political unknowns - to fight parliamentary elections in June that will determine his chances of putting his program into action.
The two men shook hands between the French and European Union (EU) flags, a reminder of France's prominent role in the 28-member bloc and Macron's commitment to the EU.
He will take the position replacing outgoing President Francois Hollande.
Macron won after a bitter campaign against a strong far-right opponent, Marine Le Pen, who delivered the best-ever result for the country's far-right party after her furious denunciations of immigration and open borders. Macron was Hollande's former adviser, then his economy minister from 2014 to 2016, when Macron quit the Socialist government to launch his own independent presidential bid.
Macron's first week will be busy.
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Twenty-one cannons were fired to salute Macron as the new president, as his motorcade left the palace in a downpour of rain.
In a lofty but lucid inaugural speech, Mr Macron vowed to lift France out of its sense of decline and lost goal, and seize its place in the world.
Macron said all countries in the world are "interdependent ... we are all neighbors".
About 300 guests, officials and family members gathered in the Elysee reception hall, including Macron's wife, Brigitte, wearing a lavender blue dress by French designer Nicolas Ghesquiere for Louis Vuitton.
The former investment banker becomes the youngest post-war French leader and the first to be born after 1958 when President Charles de Gaulle put in place the country's Fifth Republic.
He was loudly applauded by the employees of the French presidency at his departure.
In a visibly moving moment for both, Macron accompanied Mr Hollande to his vehicle, shaking hands and applauding him along with the employees of the French presidency who had gathered in the palace's courtyard. On Monday, he is expected to reveal the closely-guarded name of his prime minister, before flying to Berlin. Aides went out of their way to emphasise that the dark suit he wore to stride up the red carpet to power cost about 450 euros or just under $500.
He is the first French president who doesn't originate from one of the country's two mainstream parties.