Gene Roddenberry said this quote
“ For most people, religion is nothing more than a substitute for a malfunctioning brain. If people need religion, ignore them and maybe they will ignore you, and you can go on with your life. It wasn't until I was beginning to do Star Trek that the subject of religion arose. What brought it up was that people were saying that I would have a chaplain on board the Enterprise. I replied, No, we don't. ”