As I agonized over my decision, I realized that I would have some regrets and doubts no matter what choice I made.

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Or maybe you had some doubts saying, I don't want to go back and revisit that time because it was pretty grim?

NPR: Aretha Franklin's Globe-Nominated Performance

And what I want young people to understand, especially our young people in college, because I know that you face some struggles and you have some doubts and you hit some barriers and you wonder where this is all worth it, whether this change can really happen.

WHITEHOUSE: The White House

The European authorities may have some secret plan for holding the euro together after a Greek exit but, frankly, I have my doubts.

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He said elections for a new synod were not due until autumn 2015, adding that "unless some of those who voted 'no' this time can be persuaded to change their minds, I have doubts about the bishops being confident of getting the revised measures through" before then.

BBC: UK