Latin America's first pope has stressed the need to protect the poor and the environment from exploitation and to foster dialogue among all sectors of society on his return to Spanish-speaking South America for the first time.
Children in traditional dress greeted Francis at Mariscal Sucre airport outside Ecuador's capital Quito, the wind blowing off his skullcap and whipping his white cassock as he descended from the plane following a 13-hour flight from Rome.
In a speech in front of President Rafael Correa, the 78-year-old Argentine pontiff signalled some of the key themes for the visit, which will also take him to Bolivia and Paraguay - the need to care for society's most marginal, guarantee socially responsible economic development and defend the Earth against profit-at-all-cost development that he says harms the poor the most.
"From the peak of Chimborazo to the Pacific coast, from the Amazon rainforest to the Galapagos Islands, may you never lose the ability to thank God for what he has done and is doing for you," he said from the tarmac.
"May you never lose the ability to protect what is small and simple, to care for your children and your elderly who are the memory of your people, to have confidence in the young and to be constantly struck by the nobility of your people and the singular beauty of your country."
It is a message that is particularly relevant for Ecuador, a Pacific nation of 15 million people that is home to one of the world's most species-diverse ecosystems and the Galapagos Islands, which inspired Charles Darwin's theory of evolution.
While oil has brought Ecuador unparalleled revenues in recent years, the accompanying deforestation and pollution have stained its vast swathes of Amazonian rainforests where many indigenous people live.
Falling world prices for oil and minerals, though, is now threatening to fray the generous social safety net woven by Mr Correa, who has been buffeted for nearly a month by the most serious anti-government street protests of his nearly nine years in power. Along Francis' motorcade route into Quito, some onlookers shouted "Correa out!" and gave a thumbs-down gesture.
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