Question Statement :

In an attempt to encourage “livelier” writing, some teachers want children to stop using words like ‘said’, which doesn’t have any emotion. The assumption here is that emotion is a desirable quality in every word of a sentence, and that a rich word is always more appropriate than a plain one. You don’t have to invoke Hemingway, who made a fetish of plain words, to recognize that successful writing modulates the lavishness of its diction for effect, rather than cranking the dial all the way to maximum floridity and leaving it there. 

What is the main idea of this paragraph?