Barack Obama in 2004 responding to the question of why he was ruling out running for president in 2008:
"You know, I am a believer in knowing what you're doing when you apply for a job. And I think that if I were to seriously consider running on a national ticket, I would essentially have to start now, before having served a day in the Senate. Now, there are some people who might be comfortable doing that, but I'm not one of those people."
From Rachel Lucas.