The rarest thing that people can do is to be happy with what they have. As humans, we always want more and more. We want to be richer and more successful. Even if we have everything we ever wanted, there will always be something else that we want; a new house, a bigger car, or a better job title.  Even if we do get what we want, it won’t make us happy for long because soon we will start to crave something else again.