Michael Phelps is the most decorated Olympian of all time, thanks to 18 gold medals and 22 medals overall. However, he had his sights set much lower at the beginning of his career.
After failing to medal in the 2000 Sydney Olympics at the age of 15, he set a reachable goal for the future: win a gold medal at the 2004 Athens Olympics.
That didn't turn out to be much of a problem for the swimmer. Phelps won eight medals, including six gold medals, at the 2004 Summer Games.
Phelps was the most dominant swimmer in Olympic history, which makes this interview of him as a teenager pretty awesome.