What is only a sith deals in absolutes?

"Only a Sith deals in absolutes" is a famous quote from the Star Wars Episode III: Revenge of the Sith movie. The quote refers to Obi-Wan Kenobi's statement to Anakin Skywalker during a heated conversation about the Jedi's role in the galaxy. The quote refers to the idea that the Sith view the world in black and white, with no room for nuance or gray areas, which is considered a dangerous and uncompromising stance that can lead to aggression and destruction.

The quote has since become a popular meme and is used to criticize people who view the world in a simplistic and rigid way. The phrase has also been referenced in popular culture beyond Star Wars, highlighting its impact and cultural significance.