Mandela in boxing gloves circa 1950 (Photo: Getty)
Today is Nelson Mandela's 95th birthday.
It's also Nelson Mandela Day, an international celebration of the achievements and legacy of the man known as Madiba.
Citizens across the globe are asked to give at least 67 minutes of their day - that's one minute for each year that Mandela served his country and his cause - to improve the world.
The Nelson Mandela Foundation has some suggestions for how to do that: tutoring, volunteering, cleaning up your community, advocating for the disabled, helping someone find work... Anything that will honour the legacy of Madiba by making the world a better place.
Whatever you choose to do today, here's some inspiration, in the form of pictures and quotes from the life of the man himself.
"Any man that tries to rob me of my dignity will lose."
Mandela in 1961 (Photo: Getty)
"It always seems impossible until it's done."
Mandela in conversation with Capetown teacher C Andrews in 1964 (Photo: Getty)
"To deny people their human rights is to challenge their very humanity."
Mandela and seven others leave the Palace of Justice in Pretoria, sentenced to life in prison, in 1964 (Photo: Getty)
"There is no such thing as part freedom."
A pile of birthday cards for the still-jailed Mandela on his 70th birthday in 1988, as his then-wife Winnie speaks (Photo: Getty)
"A good head and a good heart are always a formidable combination."
Mandela delivers his first public speech after his release in 1990 (Photo: Getty)
"Let freedom reign. The sun never set on so glorious an achievement."
Mandela and then-wife Winnie raise their fists after his release in 1990 (Photo: Getty)
"In my country we go to prison first and then become president."
An estimated 40,000 supporters listen to an address from Mandela as he campaigns for the presidency (Photo: Getty)
"I dream of an Africa which is in peace with itself."
Mandela does a little dance after winning the presidency (Photo: Getty)
"I detest racialism, because I regard it as a barbaric thing, whether it comes from a black man or a white man."
Mandela congratulates the captain of South Africa's rugby team on winning the Rugby World Cup in 1995 (Photo: Getty)
"There is nothing like returning to a place which remains unchanged to find the ways in which you yourself have altered."
In 1995, Mandela visits the cell where he spent 19 of his 27 years incarcerated (Photo: Getty)
"We must use time wisely and forever realize that the time is always ripe to do right."
Mandela with current wife Graca Machel and then-head of the UN, Kofi Annan
"Courageous people do not fear forgiving, for the sake of peace."