"The Dark Side of the Force is a pathway to many abilities some consider to be — un-natural..."
— Supreme Chancellor Palpatine
Obi-Wan Kenobi: It's funny you should mention that. I trained the man who killed him.
Mace Windu: In the name of the Galactic Senate of the Republic, you're under arrest, Chancellor.
Supreme Chancellor Palpatine: Are you threatening me, Master Jedi?
Windu: The Senate will decide your fate.
Windu: Not yet.
"Once more, the Sith shall rule the galaxy! and we shall have... peace."
— Darth Sidious
Obi-Wan Kenobi: It's over Anakin, I have the high ground!
Anakin Skywalker: You underestimate my power!
Obi-Wan: ...don't try it.
Darth Vader: I HATE YOU!
Obi-Wan: (with infinite sadness and a spark of tenderness) ... You were my brother, Anakin. ... I loved you.
Darth Sidious: Lord Vader. Can you hear me?
Darth Vader: Yes, master... where is Padmé? Is she safe? Is she all right?
Sidious: It seems, in your anger... you killed her.
Vader: I... I couldn't have. She was alive! I felt it!
(Vader, through the Force, destroys the equipment of the laboratory he's in)
"The dark is generous, and it is patient, and it always wins—but in the heart of its strength lies weakness: one lone candle is enough to hold it back. Love is more than a candle. Love can ignite the stars."