A related article just popped up at C4P:
http://www.conservatives4palin.com/2010/05/famous-quitters-throughout-history.html#comments
1. Copernicus "quit" believing the sun rotated around the earth.
2. The American Revolutionaries "quit" being subject to England.
3. Abraham Lincoln helped America "quit" practicing slavery.
4. Thomas Edison "quit" using the oil lamp.
5. The moon landers "quit" being stuck on the earth.
6. Bill Gates "quit" using the typewriter (and also quit Harvard).
7. Michael Jordan "quit" the Tarheels (and the Bulls, and then came back)
8. Ronald Reagan "quit" acting.
9. Russia "quit" the Soviet Union.
10. Carly Fiorina "quit" having cancer.
Not a single one is a truthful "quit". Pretty pathetic attempt to delegitimize the issue but it actually shows that this is a real issue and for many, many Americans a deal killer.