which is your greatest teacher: failure or success?

I asked a good friend and great leader, Greg DuBose of The Bella Group, a question last week. It kind of stumped him at first, which has to be a new experience for him.  After a bit of contemplation, He gave a great answer.

Now I’m asking you – so here goes:

What do you learn the most from: failure or success?

After you answer, I’ll let you in on what Greg said.  By the way, let’s not have a one word answer. Give a little explanation – some dialogue would be good.

So, how ‘bout it? Which is it for you – failure or success?