The Woolly-Thinker's Guide to Rhetoric

Go Ahead, Contradict Yourself

Don't be afraid to make two mutually incompatible statements in one sentence. For instance, if you are a bishop, declare that the Church is not afraid of critical examination, but at the same time guards the 'truths' of its faith very jealously. If anyone asks how you can do both of those, exactly, just look vague and perhaps hum a little sacred music.