Yours is a question that appears frequently on this subreddit - not that it's a tired question, but because it is a very good question.

I have addressed this topic in two ways within the last month (and I need to mention my name or I will be scolded by a bot: /u/itsallfolklore). Consider this discussion and also consider this discussion.

Let me know if there is anything else you would like to discuss in this regard.