"Verum in libero", latin for "the truth in freedom". We seek freedom from Hogwarts, from the Ministry, freedom from all authority that keeps us from reaching our goals and using magic to its full potential. "Dark" wizards are welcome too.
Gryffindor, Ravenclaw, Hufflepuff, Slytherin. It does not matter what House you reside in. What matters is that you're willing to accept anyone, and will help in joining all the Houses together. No Bullying!