As we move into the 21st century, it sometimes feels as though we are barreling into a great valley-it is green and lush, but shadowed with uncertainty. It is a valley of mixed hues, fragrances, and textures, and we do not always know whether we should celebrate the diversity of its parts or stop at the edge and admire the whole picture, seeing how the diverse parts work together. Like the description of this picture, we often see diversity and unity in opposition to each other, when in fact, they exist in dynamic balance, each requiring the other.