Eliud Kipchoge: Inside the Camp, and the Mind, of the Greatest Marathon Runner of All Time

Kipchoge’s dedication was evident. He discovered early in life that “without being self-disciplined, you cannot go anywhere,” he says.
Sarah Gearhart • We Share the Sun
"I have learnt that self-discipline is everything," Kipchoge says, summing up two decades at the top of his game. "I am nothing without it because it has given me the power of knowing that I need to sacrifice one thing to achieve another."