I need a closing paragraph for my essay. Please help.?

Here's an idea "Most people who argue for the legalization of marijuana claim that the drug is non-habit forming, and does not negatively harm the user. However multiple studies have proved this wrong on many accounts, a survey shows that millions of people are clified as addicted, and others show that the drug is related to misbehavior, social, psychological and physical reverberations, and defiance of authority. It is also linked to increased rates of violent crime, and decreased rates of educational and social success. For these reasons it is clear that marijuana is not a safe or harm-free drug, and should continue to be used for medical purposes only." Now don't quote that word for word, plagiarism you know, but there's an idea.