Keyword Stuffing

Key word stuffing is an SEO mistake that made by new comers. It is a practice of including keywords where ever possible. This may attract search engine and consider your article as more relevant one. But for stuffing key words the writer may sacrifice some of  the aesthetic value of the content. That means the article is more search engine oriented than human oriented. Google warns that this is a bad practice and you must avoid that. Then what is a possible well written essay? It may contain a reasonable number of key words. It should not contain any more keywords than it is required for a smooth reader understanding. But my opinion in this case is that you can include one keyword in the first sentence and in the last sentence if it is not appearing naturally.
Do you accept my thinking? Make your comments!