How Do You Define Success?

Yesterday someone asked me how I define success.  My first thought was to turn to the OED, which is what I use to define everything.

But then I heard myself say, “The people I love the most love me back.  That’s what I consider my success (or luck). Everything else seems trivial compared to that.”

Lucky or not, I’m grateful.

How do you define success?  (feel free to use the OED, the dictionary of the gods)