The Sith Code

The Sith Code was the exact opposite of the Jedi Code, for example, the Jedi say "There is no emotion, only peace" The Sith twist that into the Dark Side and state "Peace is lie, there is only passion.  The Order of Chaos originally asked all their new joiners if they Sith Code, this rule was changed not to long ago  The Sith based this code upon their hate for Jedi.

" Peace is a lie there is only Passion, Through Passion I gain Strength, through Strength I gain Power, through Power I gain Victory, through Victory my chains are broken, The Force shall free me "  -The Sith Code

" Nwûl tash. Dzwol shâsotkun. Shâsotjontû châtsatul nu tyûk. Tyûkjontû châtsatul nu midwan. Midwanjontû châtsatul nu asha. Ashajontû kotswinot itsu nuyak. Wonoksh Qyâsik nun. " -The Sith Code (Original Version)

"If you're not with me, then you're against me" - Darth Vader, reffering to Obi-Wan Kenobi in Star Wars: Revenge of the Sith, Episode III.