Erwin Raphael Mcmanus said this quote
“ What is the path to wholeness? We will see this path more clearly if we recognize that greed’s ugly stepsister is ungratefulness. Greed always wants more. When we are greedy, we are never satisfied. Whatever we receive from others, we conclude we deserve. And in whatever quantity it may come, it is never enough. Lack of gratitude is a manifestation of an abundance of greed. From the vantage point of the taker, it is his or her justification for always demanding. He is endlessly disappointed in others. No one ever comes through for him. No one ever keeps his promises. Everyone always falls short of his expectations. There is no need for thanks, except thanks for nothing. No truth, no matter how profound, will find its way into a heart that is absent of gratitude. ”