The first people to climb Mt. Everest, the world’s highest mountain, were Edmund Hillary and Tenzing Norgay in 1953. Hillary was just 33 years old. His feat afforded him fame, wealth, and the realization that he had already lived a remarkable life.

So, what did Hillary do for the next 55 years? Did he retire and rest on his laurels? Absolutely not.

Although Hillary had no higher mountains to climb, that didn’t stop him. He achieved other notable goals, including a concerted effort to improve the welfare of the Nepalese people living near Mt. Everest—a task he carried on until his death in 2008.