ENVY AND THE FIXED TRAIT MINDSET
Envy is passive greed. It is also the result of a particular way of thinking of yourself.
Greed as it is commonly used refers to an "excessive or rapacious desire, especially for wealth or possessions." Of course there can be a beneficial effect to a desire for more, when it is channeled through the free market system, where in order to get more yourself, you have to create value for others - as Milton Friedman so brilliantly explains here.
Envy is an expression of that same "excessive or rapacious desire, especially for wealth or possessions," but with a difference: the envious person does not believe that he has the ability to earn the things that he desires. Which leaves only one alternative: he must covet what others have attained for themselves. For very good reason does the 10th Commandment condemn it.
Greed and envy are the negative qualities that you can fall into when you allow your Rat Brain to guide you - following your impulses and automatic responses without regard to your consciously chosen principles, values, and priorities.
The dysfunctional nature of greed and envy have one thing in common: a fixed trait mindset.