"I don't chew my cabbage twice." Repeating a message inside a workplace document.

Historically this old cliche means that I refuse to repeat myself.  If you can't hear me, get your ears checked.  If you don't understand me, I can't help you.  But that kind of thinking doesn't serve your readers well if the message you have to share needs to be revealed in a variety of ways so that the complexity of it can be appreciated.

That's why workplace writers must think about the logic of their idea presented simply, the possible metaphors for their ideas that will help enhance the reader's understanding, and different words that create the kind of verbal texture that, ideally, an illustration or photograph will also add to the story you are trying to tell.

When you plan a workplace document and decide upon its principal message, you must think multi-dimensionally.  Consider how many ways you can tell the message you intend to communicate.  Then, explore them.  Try them out.  Try them out on readers.  Traditionally, readers need to hear and see your message in a number of ways in order to receive the information you have to share.