MLK Quote: Are our Religious Institutions Social Clubs?

From the sermon "The Drum Major Instinct":

And the church is the one place where a doctor ought to forget that he's a doctor. The church is the one place where a Ph.D. ought to forget that he's a Ph.D. (Yes) The church is the one place that the school teacher ought to forget the degree she has behind her name. The church is the one place where the lawyer ought to forget that he's a lawyer. And any church that violates the "whosoever will, let him come" doctrine is a dead, cold church, (Yes) and nothing but a little social club with a thin veneer of religiosity.