How Star Wars Conquered The Universe, The past, present and future of a multibillion dollar franchise by Chris Taylor. Read this book. It is excellent.
The Star Wars Episode I that could have been.
Yoda quotes from The Empire Strikes Back:
“You must unlearn what you have learned.”
“Do. Or do not. There is not try.”
“A Jedi uses the force for knowledge and defence. Never attack.”
Luke: “I don’t believe it.”
Yoda: “That is why you fail.”
“Always with you it can not be done.”
“Wars not make one great.”
“Never his mind on where he was. What he was doing.”
Luke: “I’m not afraid.”
Yoda: “You will be. You will be.”