There is a famous saying that Pres. Bunker has become well known for, which is, "Ever grateful, Never satisfied".
I feel that I have the "never satisfied" part down pat.
Every night, after a long day of striving to find, teach, and baptize, we review what we did for the day before planning for the next. Some days seem more accomplished than others.
Like many of us, the disciples saw only what was lacking.
Look at this picture of Sally Howard and I, and tell me, is my cup half empty or half full?