Our civilization has decided that determining the guilt or innocence of men is a thing too important to be trusted to trained men. When it wants a library catalogued, or the solar system discovered, or any trifle of that kind, it uses up its specialists. But when it wishes anything done which is really serious, it collects twelve of the ordinary men standing round. The same thing was done, if I remember right, by the Founder of Christianity.
Familiarity breeds contempt. How accurate that is. The reason we hold truth in such respect is because we have so little opportunity to get familiar with it.