Don't make the mistake of stealing the content from other websites, it's not ethical. Copying content that belongs to someone else won't take you anywhere.
Nobody may notice that your site is using plagiarized content at first, but eventually people will find out. And the biggest downside to it is that the search engines have gone smart and they know the difference between original content and the duplicate one. Your site will get stuck in the duplicate content filter, which will eventually affect your ranking.
