When I was about 10 years old and running the sprints in a local track club, I admired Jesse Owens for his speed and records broken. As an adult I admire him for running in the Berlin Olympics right in front of Adolf Hitler.
As a 30-something who took up long-distance running, I admire Steve Prefontaine. Through lots of hard work and gut-wrenching workouts he worked himself almost to the top. The podium would've belonged to him if only he could've lived longer.
Both of these men started from scratch, and nothing but determination and hard work brought them success. What great role models to surround yourself with to help make your goals more attainable.