Google says Quality Not Quantity

It has all seen that pages having uniqe content and quality content having higher page rank in Google search Engine it is also mentioned by writers of search engines's algorithm that if you have only 2-4 pages in your blog but uniqe and useful to user ,they will oviously visible or will come higher than any other pages of website or blog.
Thus if anybody's blog page got higher rank than other means there would be the things uniqeness and quality.
So , personally I would like to recommend any blog writes not to focus on quantity
but quality and uniqeness of content while writing blogs.