You have to defeat them biblically. All the other "feely touchy" subjects will be refuted with bible texts.
Hi Butters - I disagree with you on this one. I think many witnesses need to 'feel' something is wrong on a human level first. In my experience, if you hit from the intellect, they are more likely to shut down. Tapping into a feeling will leave a lingering unease that can start to chip away at the person's defenses.
-Aude.