What can you do after the biggest moment of your life? It is a question everyone has to answer sooner or later. But for no-one has it been more pressing than Jimmy CarterThe US president from 1977 to 1981. He was a Democrat. , who was President of the United States fully 44 years ago.

Yet in fact, Carter is beloved in American society not because of what he achieved as president, but for what he has done since.

Many see Carter's presidency as an example of what thinker Mark FisherFisher was a blogger, philosopher and teacher at Goldsmiths, University of London. He was known for his writings on radical politics. called "hauntology": a vision of a different future that haunts our own present.¹

He eased tensions with the USSRThe United Socialist Soviet Republic, the USA's main rival in the Cold War before it collapsed and broke up into a number of smaller states in 1991.. He set a target for 20% of all US energy to become renewableEnergy sources, such as wind and solar power. by 2000.¹ He declared that human rights would be the focus of US foreign policy.

But after his presidency, Ronald ReaganThe 40th US President. took the US down another path entirely. He heightened the conflict with the USSR and abolished subsidiesMoney given by the state or another body to help keep prices low. for solar energy. He funded brutal uprisings against left-wing governments.³

Yet, although Carter lost, he has continued to lead his nation by example.

So here are five moral lessons we can all learn from Jimmy Carter:

Be dignified. Carter refused to criticise his successor for his first year in office, resolving to be gracious and give him a fair chance.⁴

Be humble. Since 1984 Carter has volunteered with the charity Habitat for Humanity, building houses with his own hands.⁵

Be balanced. Carter has never been afraid to criticise allies and praise enemies. He delivered a eulogyA speech about someone's life that is often read out at their funeral. at the funeral of his political rival Gerald FordThe Republican Party US president from 1974 to 1977. .

Be willing to change. In his early career, Carter used racism to get ahead in politics. But he later repented and in 2008 was one of Barack ObamaThe Democrat US president between 2008 and 2016.'s earliest backers for the presidency.

Be bold. Carter has never lost his conviction that with just a little courage, peace can be made everywhere. As recently as 2017, he volunteered to be a peace envoyA representative, usually from a government. to North KoreaA country formed in 1945 when Japanese-occupied Korea was split between a Communist government in the north and a capitalist one in the south. Today it is extremely reclusive, and hostile to the West..

Is a good life the greatest achievement?

Yes: Carter has led an unfailingly good life since he left office. And in doing so, he serves as an inspiration for millions of people, at a time when moral goodness can feel in short supply.

No: Being a moral leader is one thing, but the power to change things is far more important. Moral regeneration is not enough in itself to secure progress towards a better future.

Or... A good leader needs both the ability to change things in practice and the capacity to rally the people around a moral vision. Carter has always lent his efforts to creating this moral vision.