A person who is said to possess greatness stands apart from others in some way, usually by the size or originality of their vision and their ability to manifest that vision. And yet those who recognize that greatness, whether they display it themselves or not, also have greatness within them; otherwise, they could not see it in another. In many ways, the achievements of one person always belong to many people for we accomplish nothing alone in this world. People who display greatness rely upon others who are able to see as they do, to listen, encourage, and support. Without those people who recognize greatness and move in to support it, even the greatest ideas, works of art, and political movements would remain unborn.
We are all moved by greatness when we see it, and although the experience is to some degree subjective, we know the feeling of it. When we encounter it, it is as if something in us stirs, awakens, and comes forth to meet what was inside us all along. When we respond to someone else's greatness, we feed our own. We may feel called to dedicate ourselves to their vision, or we may be inspired to follow a path we forge ourselves. Either way, we cannot lose when we recognize that the greatness we see in others belongs also to us. Our recognition of this is a call to action that, if heeded, will inspire others to see in us the greatness they also possess. This creates a chain reaction of greatness unfolding itself endlessly into the future.
Ultimately, greatness is simply the best of what humanity has to offer. Greatness does what has not been done before and inspires the same courage that it requires. When we see it in others, we know it, and when we trust its presence in ourselves, we embody it.