Lethos Code

"There must be both dark and light. I will do what I must to keep the balance, as the balance is what holds all life. There is no good without evil, but evil must not be allowed to flourish. There is passion, yet peace; serenity, yet emotion; chaos, yet order. I am a wielder of the flame; a champion of balance. I am a guardian of life. I'am a Lethos Jedi

A Lethos Jedi reciting the basics of the Lethos Code.

The Lethos Code was the mantra that all Lethos Jedi lived by, similar to the Jedi Code and the Sith Code. It was written when the Order of the Lethos Jedi was founded.

The Code
Moving through all, there is balance 

There can be no peace without a passion to create it                                                                                              There is no  passion without peace to guide                                                                                                              Knowledge strengths those without the will to act                                                                                                    Power blinds without the serenity to see

There is freedom from                                                                                                                                              There is a reason for death                                                                                                                                         

The Force is all things and I am the Force

Moving through all, there is balance

 * While Lethos Jedi believed that the Force did indeed have inherently Light and Dark sides, they recognized that these aspects could not be separated without negative consequences. If the Dark Side and the Sith were to gain dominance, life would become self-destructive and be extinguished. However, if the Light Side and the Jedi Order's quest for peace were allowed to come to pass, the galaxy would fall to lethargy, apathy, and eventually fade and die. Both Light and Dark were part of the Force, and all aspects of the Force had to be studied and respected.
 * Balance was central to a LethosJediand without it, the galaxy would fall to ruin. Thus, they acted as guardians of this balance, guided by their connection with the Force. Gray Jedi ultimately believed that the end justified the means. The Gray Order generally encouraged mutually beneficial relations between civilizations and systems. However, if a situation arose that required a species, or even planet, to be manipulated or destroyed to re-balance the state of the galaxy, a way would be found to do so.