Here are a couple of mine:
"Religion is for people who are afraid to go to hell. Spirituality is for those who have already been there."
"God wants spiritual fruits, not religious nuts!"
"That is not dead which can eternal lie. And with strange aeons even death may die."
Okay I'm not sure that last one really counts or not but I figured I'd mention it anyways as I love Lovecraft!
"Religion is for people who are afraid to go to hell. Spirituality is for those who have already been there."
"God wants spiritual fruits, not religious nuts!"
"That is not dead which can eternal lie. And with strange aeons even death may die."
Okay I'm not sure that last one really counts or not but I figured I'd mention it anyways as I love Lovecraft!