Reading John Garrison's evangelism paper brought out a comparison of scientists that hit close to home for me. But I am applying to law schools, so the comparison of scientists to lawyers was very interesting.
Scientists are generally somewhat like lawyers.
They both are probing and methodical and they both insist on evidence based on accepted criteria within their discipline. For lawyers, appropriate evidence can be language. I suppose that reading this won't provide you with the same revelation it did me, but I appreciate John's comparison, as well as his answer to the question of how to evangelize to scientists.