When a consumer derives value - especially from something that was given to him for free - he becomes the best kind of evangelist.
![When a consumer derives value - especially from something that was given to him for free - he becomes the best kind of evangelist.](http://cdn.quoteddaily.com/images/mitch-joel/when-a-consumer-derives-value---especially-from-something-that-was-given-to-him-for-free---he.jpg)
When a consumer derives value - especially from something that was given to him for free - he becomes the best kind of evangelist.