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.
“One funny thing is, though, I wear my watch on my right hand and I'm actually right-handed. People always wonder why - I don't know myself, I've just always done it that way and I like it the way a good watch fits on my right wrist.”
“It has since been agreed that speeches given in English will be translated into French and vice versa, and even into German and Italian when necessary. No doubt translations into Esperanto will also soon be in demand.”