Do or do not. There is no try.

In case you didn't know, the title of the post comes from a quote in The Empire Strikes Back, when Luke Skywalker doubts his abilities and wants to give up. Luke says he'll try, and Yoda tells him, "Do or do not. There is no try." You either see a task to completion or don't bother attempting it. Don't say you'll do something but then give half of your effort.

What does that have to do with me? Other than being a big fan of the Star Wars movies (well, episodes 4 through 6 anyway), the quote re...