Confidence or Arrogance?

At what point does confidence become arrogance?

I met a person who owns her own business and, understandably, had a lot to say about it.  She is definitely proud of her accomplishments thus far and is eager to continue to grow the company.  While she was telling me about her business, I noticed that everything she talked about, she claimed to be really good at doing.  Of course, there is nothing wrong with knowing you are good at something and saying that out loud, but she said it so many times, I started to ask myself if it was confidence or arrogance?  I felt it was a great thing that she was so confident.  It helped her stay driven to succeed at her business.  Even if she wasn’t quite the expert she claimed to be, having the attitude that she was going to make it happen and that she could make it happen could possibly have made the difference between success and failure.  I decided that it was confidence that she was displaying.  She was confident in her product and her ability to create interests for it within the public.  I suppose that is much better than the alternative.  If she was modest about her  abilities and allowed room for doubt, it may have led to a discouraging attitude rather than the positive “I can do it, I will do it” attitude she has.  I actually hope to be that confident if I ever go down that path of owning a business.  Of course, over confidence could lead to negative results if you’re not balancing it out with realistic ideals.  I suppose that is just what needs to happen, a balance between confidence, determination, and a realistic view of the current business environment.  At least, that is how I see it.