Master Yoda, let's talk about this "Do or do not. There is no try."
Despite being a great motivational tool, your mantra falls short as an overall philosophy. I understand what you're going for is a more eloquent (in your own grammatically unique way) phrasing of "Failure is not an option." The problem is you offer the "do not" route as an option. "Do not" holds a lot of appeal. Do not underestimate the power of "do not."
Seriously, if "do not" could really yield you any sort of wisdom or power, you should be snatching a pebble from my hand. Fear, hatred, anger, aggression...apathy is a much quicker route to the Dark Side. Trust me.
Speaking of which the Emperor keeps pushing for Luke, like his father before him, to let his passion fuel him. And Obi Wan claims that only Sith deal in absolutes. You guys are sending out a lot of mixed messages here. No wonder you have more kids going bad than the 119th Street Boys & Girls Club.
Lighten up you should.