Does Quality Contents Really Boost SEO Result?

Does Quality Contents Really Boost SEO Result?

I was read some thread in LowEndTalk forum, and saw someone asking a basic thing about SEO – he ask “why a new website able to have a first position on search engine result page?”. Then someone replying his thread confidently by writing a sentence “write quality contents, yes, you are welcome!”. Well, does quality contents really boost SEO result?