If speculation tends thus to a terrific unity, in which all things are absorbed, action tends directly back to diversity. The first is the course or gravitation of mind; the second is the power of nature. Nature is manifold. The unity absorbs, and melts or reduces. Nature opens and creates. These two principles reappear and interpenetrate all things, all thought; the one, the many.
If we wish to ensure everyone’s peace and happiness we need to cultivate a healthy respect for the diversity of our peoples and cultures, founded on an understanding of this fundamental sameness of all human beings
The underlying struggle - between worlds of plenty and worlds of want; between the modern and the ancient; between those who embrace our teeming, colliding, irksome diversity, while still insisting on a set of values that binds us together, and those who would seek, under whatever flag or slogan or sacred text, a certainty and simplification that justifies cruelty toward those not like us.