Although not a member of the cult, I do lurk about several CrossFit blogs and sites. Here is a particularly enjoyable quote I recently came across:
[Y]ou agree to give 100% of what you have. There are no excuses or second chances. Everyday, every moment is an opportunity to excel, to be more, to acheive your best. Do not squanders you time by going through the motions. Train hard and get results. At the end of the day, look in the mirror and ask yourself if you gave your all. If you don't have that level of committment, don't waster your time or ours.