I'm too old for that?

Ever heard the excuse, "I'm too old for that?" (Ever said it yourself?)

Check out these people who refused to let their ages dictate their potential:

• In 2008, 41 year-old swimmer Dara Torres won three silver medals at the Beijing Olympics.
• George Foreman recaptured the heavyweight championship when he was 45 years old.
• Daniel Defoe was 59 years old when he wrote his first novel, "The Life and Adventures of Robinson Crusoe."
• At 65, Mick Jagger is still touring and recording with The Rolling Stones.
• Joe Paterno is still the head coach of Pennsylvania State University's college football team... at age 82.