In an interview with Michael Jordan, Marvin R. Shanken asked him about his regrets and disappointments in life. This is how he responded:

I'm not the kind of person who has regrets. As soon as you look back … and you come up with something you feel like you want to change, something else [in your future] has to change. ... To win, you've got to lose. To be successful, you've got to have something that's not successful. To be happy, you've got to have disappointments. So, I think all those things have happened to make me who I am.

Note: You can watch the hour-long video here.