People are not stupid. They believe things for reasons. The last way for skeptics to get the attention of bright, curious, intelligent people is to belittle or condescend or to show arrogance toward their beliefs.
Carl SaganAn atheist is someone who is certain that God does not exist, someone who has compelling evidence against the existence of God. I know of no such compelling evidence.
Carl SaganThe method of science, as stodgy and grumpy as it may seem, is far more important than the findings of science.
Carl Sagan