Darth Vader: There is no escape. Don't make me destroy you. You do not yet realize your importance. You have only begun to discover your power. Join me... and I will complete your training. With our combined strength... we can end this destructive conflict... and bring order to the galaxy.
Luke Skywalker: I'll never join you!
Luke Skywalker: I can't. It's too big.
Master Yoda: Size matters not. Look at me. Judge me by my size, do you? And well you should not... for my ally is the Force. And a powerful ally it is. Life creates it... makes it grow. Its energy surrounds us... and binds us. Luminous beings are we, not this crude matter. You must feel the Force around you. Here, between you, me... the tree, the rock... everywhere. Yes... even between the land and the ship.
Luke Skywalker: You want the impossible. (Yoda lifts the ship out of water) I don't... I don't believe it.
Master Yoda: That is why you fail.
Master Yoda: A Jedi's strength flows from the Force. But beware of the dark side. Anger, fear, aggression... The dark side of the Force are they. Easily they flow, quick to join you in a fight. If once you start down the dark path... forever will it dominate your destiny. Consume you it will, as it did Obi-Wan's apprentice.