Paul, 71, believes we’re too hard on ourselves when it comes to regrets:

What I know now is I made some mistakes in life, I have some regrets.  I think we all do.  But I’ve learned as I get older. I’ve identified things that I feel as though I did wrong.  I feel bad them, but I don’t hold myself responsible at this point in time.  I’m a different person now.  And to know that I erred in certain ways and I feel sad about it is enough for me.  The guilt is gone.