My dream, when I was 10 years old, was to become a famous cycle champion and win the tour de France. The only major obstacle I could see was to learn to ride without holding both hands on the handlebar to celebrate victory. Some other activities diverted me from this goal and I ended up spending more time on a school bench than on a saddle.
In 2006 I decided to try to bike around the world in 365 days... Report and pictures can be found in here.