Nelson Mandela was born into a privileged family in South Africa. He earned a law degree, opened his own firm, and was on his way to a life of ease and affluence. All he had to do was keep his mouth shut about the racial injustices of the apartheid government.
Instead, Mandela joined the African National Congress, a political opposition party which demanded equal rights for native Africans. He became a leader.
Because of his involvement, Mandela received a life prison sentence. He was given a thin blanket, an iron bucket for a toilet, and a straw mat to sleep on. His food was meager and he was beaten unmercifully time and time again. His years were spent alternating between solitary confinement and harsh physical labor.
Thirty years after having been unjustly sentenced to prison, the protests of his fellow black South Africans became so loud that he was released. Three years later, in 1993, he received the Nobel Peace Prize. The next year he became the President of South Africa.
It's called strength, endurance and faith.