To the medieval thinker beauty was not a value independent of others, but rather the radiance of truth, the splendor of ontological perfection, and that quality of things which reflects their origin in God. Light and luminous objects, no less than musical consonance, conveyed an insight into the perfection of the cosmos, and a divination of the Creator.
Diversity is the world of form in all its infinite variety of textures, colors, contrasts, and differences. Not only are we different from each other, but everything is different from one moment to the next -- everything is change. We are all part of one single unity, but we're also very different. We can't do peacemaking in the world -- in fact, we can't do anything effective in the world -- without taking our differences into account.