While in the middle of his Jedi training with Master Yoda, Luke Skywalker discovers his ship has sunk into the Dagobah swamp. Ever the whiner, Luke complains about how difficult it will be to salvage the ship. That’s when an exasperated Yoda bestows some unforgettable wisdom. The iconic line from this scene in The Empire Strikes Back is “Do. Or do not. There is no try.” That’s an awesome line worthy of every t-shirt and Big Bang Theory reference.