Being Repetitive

Routledge's English Language and Linguistics states that "it is surprising how much of everyday conversation consists of repetitive expressions". One of the skills of writing good English is, I think, to be unoriginal (by and large) like that. To put it simply, just say it the way it is said, the everyday way. The interesting bits should, in a sense, not be foregrounded. Or one could say, language should not get in the way of ideas. That applies very much to sermons, too. OBSERVATION: On the other hand, the number of possible sentences is about infinite (which is much debated).