Any idea can be brought into the classroom if the point is to inquire into its structure, history, influence and so forth. But no idea belongs in the classroom if the point of introducing it is to recruit your students for the political agenda it may be thought to imply.
“I'm not a big fan of religion for that reason. But I am a true believer in God, and I have great faith, and I think that a spiritual connection with something is a really important part of our experience. That doesn't necessarily have anything to do with the church.”