"If I could go back to being a scientist, I would do it, " he says.

FORBES: Careers

Maybe not right now ... (but) if I could go back to that time and say, 'OK, you're trading my story for a six-month suspension?

NPR: Armstrong Turns Emotional In 2nd Part Of Interview

And if I could go back to the first point here -- Republicans say their goal is to reduce the deficit and to reduce spending.

WHITEHOUSE: Press Briefing by Press Secretary Jay Carney,

If I could go back in time, it would be interesting to see what they were thinking and how they were thinking this would turn out.

FORBES: Honeywell's Space Guy

If I could go back in time, I would tell my younger self that love is not going to come in the package that you're expecting.

CNN: STORY HIGHLIGHTS

If I could go back in time, I would.

BBC: Canada naval spy apologises to family before sentencing

Ms. CUTTER: Well, if I could just go back to a couple of things that Sara said.

NPR: Obama Re-Writes History, Clinches Party Nomination

"I wanted to go back in to see if I could get any of them, but you can't, " Moloney told the paper.

WSJ: 3 children, 1 adult dead in Schenectady, NY, fire

"If they are transparent about results of a review, I think that could go a long way to build confidence back among passengers or any prospective passengers who are reviewing some of the negative media coverage, " he said.

CNN: Carnival cruise line in more troubled waters