It’s the early 80s (or a long, long time ago in a galaxy far away), and Luke Skywalker is having a training sesh with the Jedi Master Yoda on planet Dagobah. Our hero Luke is frustrated that his T-65 X-wing is stuck in the swampy mess of an uncharted planet.
When confronted with the task of the force, Luke admits that he will try. Yoda, in his infinite wisdom, exclaims “NO! Try not. Do or do not. There is no try.”