I would like to teach forgiveness to some people, but I find that they are not receptive to the idea that forgiveness is worthwhile. How do I proceed, given their resistance?

I have three points for you to consider. First, because forgiveness is ultimately their choice, if they are not ready to proceed, you should honor that. Second, a person’s rejection of forgiveness today is not necessarily his or her final word on the matter. So, be aware of changes in attitude. Third, there is nothing wrong with occasionally discussing forgiveness, brining it up in conversation, as long as you do not push an agenda. Conversation concerns at least two people and their worlds. If your world includes forgiveness, then sharing that world with others is legitimate, again as long as you are sharing who you are and not using this in a manipulative way. Who you are may play a part in whom the other will become as you share this aspect of yourself.