One of the easiest yet profound emotions one can share with others in their life is that of gratitude. The feeling of being grateful to another person for something, whether it be emotional support, the purchase of a product, or even the love they choose to share with you, is something everyone has done at one point or another. Yet it is also something that for some is difficult to express to those we have gratitude for. Whether it is an internal struggle that a person can't get over, or an external source of discomfort which prevents them from showing it, gratitude is a unique emotion to examine. As John F. Kennedy once said, "As we express our gratitude, we must never forget that the highest appreciation is not to utter words, but to live by them."