A number of years ago, a small book appeared for ministers. Titled The Penguin Principles, it attempted to help naive clergy get a handle on the people of their congregations. Most of the material in the book was written with tongue in cheek, so it has some truth in it. According to the book, the first principle of church life goes like this: "Despite the pious things we say, at any given time, less than five percent of any group in the church is operating with purely Christian motivation. The other 95 percent is asking, 'What's in it for me?'"
CSS Publishing Company, Inc., No Box Seats in the Kingdom, by William G. Carter