LONDON -- Every two years, stories of inspiration and accomplishment highlight the world stage at the Olympic games.

In London, American Michael Phelps swam his way into the record books by becoming the most decorated Olympian ever. Gabby Douglas, also of the United States, became the first African American woman to win gold in the Gymnastics All-Around. And, South African runner, Oscar Pistorius, made history by becoming the first double amputee to compete in the Olympic games. 

The 25-year-old made it to the semifinals of the men's 400-meter race over the weekend, and even though he did not make it into the finals, his inspirational story has touched thousands across the globe.

Pistorius' long, hard road to London began when he was born without fibulas (calf bones). Both of his legs were amputated below the knee when he was an infant. Fit with blades, Pistorius, or Blade Runner as he is called, fought to compete with able-bodied athletes in the Olympics. After being barred from running in Beijing - track's governing body initially saying blades gave him a competitive advantage - Pistorius was cleared to compete in the London games.

London's Blade Runner, though he came up short in the 400-meter race, has inspired many, including Ellie Challs, the young girl seen in this photo. As Pistorius' story circles the globe, so does this photo reminding those who hear his story that we should never accept limits.