Skeptico has a post: How do you prove photography to a blind man? It is a particularly nice analogy to make to those who make claims that psychic phenomena actually exist.
(hat tip to The Bad Astronomer for the link)

Reflections on life at “De Witte Wand”…
"When I was young I used to be an amateur astronomer, I used to look at the night sky and I knew just enough astronomy to know that the light from some of those stars wouldn’t hit earth for hundreds of years and to me, that simply said to me, you will be dead by then and so the night sky was a symbol of melancholy, a reminder of the brevity of life."
Although, probably not those that you might expect. How about helping to save people trapped under earthquake rubble? It’s all to do with acetone, apparently…
An excellent question, to which Stephen Law, over at his eponymous blog, provides some excellent answers. The pay-off merely confirms one of my long-standing assumptions about God – that deep down, he always was an exceedingly nasty piece of work.