In google's eyes, high quality content has become more important in SEO than ever. In google terms, it is an article that is worthy enough to be linked to another website, because of its professionalism. The question is, how do we create high quality content? It must be free from grammatical, punctuation and most importantly, spelling errors. Content must be produced in a proper format. Free from spamming keywords and perfectly optimized. Keywords are placed at right places that doesn’t involve unmatched out-bound links, doesn’t host any 404 error pages and has good quality inbound links.
Those are just the basics though haha.